A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

Question

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Answer 1

Question

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

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Answer 2

Question

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Answer 6

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

Answer 7

Chapter 2.2, Problem 30E

(a)

To determine

To find: A new data set that has Internet users as users per 10,000 people and births as births per 10,000 people.

Answer 8

(a)

Expert Solution

Answer to Problem 30E

Solution: The partial data set is shown below:

Country Name	Country Code	Birth rate	Users Per 100	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.776	1477.6	408.38
Albania	ALB	12.748	49.00	4900	127.48
United Arab Emirates	ARE	12.755	70.00	7000	127.55
Argentina	ARG	17.006	47.7040	4770.4	170.06
Burundi	BDI	33.722	1.11	111	337.22
Benin	BEN	39.073	3.50	350	390.73

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

Explanation of Solution

Given: The data of birthrate (births per 1000 people) versus Internet use (users per 100 people) for 106 countries is given below.

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 2

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 3

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 4

Calculation: To obtain a new data set that has Internet users as users per 10,000 people and births as births per 10,000 people use Minitab. Follow the steps below:

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Users per 10000” in the column for Store result in variable. Select Users in the column for Expression and select “&*#8221; from the calculator and write (10000/100) in the column for Expression.

Step 4: Click OK.

The new data set for users for 10,000 people is obtained. To obtain the new data set for Birthrate 2011 for 10,000 people follow the similar steps.

Step 1: Open the Minitab worksheet which contains the data.

Step 2: Go to Calc > Calculator.

Step 3: Write “Birth rate per 10000”in the column for Store result in variable. Select Birthrate 2011 in the column for Expression and select “&*#8221; from the calculator and write (10000/1000) in the column for Expression.

Step 4: Click OK.

The new data set for Birthrate 2011 for 10,000 people is obtained. The partial data set is shown below:

Country Name	Country Code	Birth rate	Users	Users per 10000	Birth per 10000
Aruba	ABW	11.323	57.0684	5706.84	113.23
Angola	AGO	40.838	14.7760	1477.60	408.38
Albania	ALB	12.748	49.0000	4900.00	127.48
United Arab Emirates	ARE	12.755	70.0000	7000.00	127.55
Argentina	ARG	17.006	47.7040	4770.40	170.06
Burundi	BDI	33.722	1.1100	111.00	337.22
Benin	BEN	39.073	3.5000	350.00	390.73

Answer 13

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

Answer 14

(b)

To determine

To explain: The reason for these transformations to be linear transformations.

Answer 15

(b)

Expert Solution

Answer to Problem 30E

Solution: These transformations are linear transformations because every variable is multiplied by a numerical value.

Answer 16

(b)

Expert Solution

Answer 17

(b)

Expert Solution

Answer 18

Expert Solution

Answer 19

Explanation of Solution

Consider the results of part (a). The transformations provide the linearity for the new variables. These transformations can be considered as a linear transformations because every variable is multiplied by a number.

Answer 20

(c)

To determine

To graph: A scatterplot by using transformed variables.

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

Answer 21

(c)

To determine

To graph: A scatterplot by using transformed variables.

Answer 22

(c)

Expert Solution

Explanation of Solution

Graph: To obtain the scatterplot use Minitab. Follow the steps below:

Step 1: Go to Stat > Graph > Scatterplot > Simple.

Step 2: Select “Birth per 10,000” in Y variables and “Users per 10,000” in X variables.

Step 3: Click OK.

The required scatterplot is obtained as:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 5

Interpretation: The scatterplot represents that the relationship between numbers of births per10,000 versus Internet users per 10,000 is negative.

Answer 23

(c)

Expert Solution

Answer 24

(c)

Expert Solution

Answer 25

Expert Solution

Answer 26

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

Answer 27

(d)

To determine

To explain: The comparison between obtained scatterplot and figure 2.13.

Answer 28

(d)

Expert Solution

Answer to Problem 30E

Solution: The obtained scatterplot in part (c) represents that the relationship between variables is more linear than the relationship which is represented by the scatterplot of births per 1000 people and internet users per 100 people. Both the scatterplots shows moderate relationship between the variables.

Answer 29

(d)

Expert Solution

Answer 30

(d)

Expert Solution

Answer 31

Expert Solution

Answer 32

Explanation of Solution

The scatterplot which is obtained in part (c) represents that the relationship between numbers of births per 10,000 versus Internet users per 10,000 is negative.

The scatterplot of births per 1000 people and internet users per 100 people is shown below:

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, Chapter 2.2, Problem 30E , additional homework tip 6

The scatterplot represents that the relationship between births per 1000 people versus Internet users per 100 people for 106 countries is quite linear and negative. The scatterplot which is obtained in part (c) represents that the relationship between birth rate per 10000 people and internet users per 10000 people is more linear than the provided scatterplot. Both the scatterplot show a moderate relationship between the variables.

Answer 33

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Answer 34

(e)

To determine

To explain: The reason why World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Answer 35

(e)

Expert Solution

Answer to Problem 30E

Solution: To make the proper ratio, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.

Answer 36

(e)

Expert Solution

Answer 37

(e)

Expert Solution

Answer 38

Expert Solution

Answer 39

Explanation of Solution

The users of internet can be male or woman both but births can be given by females only. To make the ratio accurate, the analyst of World Bank selected Internet users as users per 100 people and births as births per 1000 people.