The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot. b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot. c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

Question

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Answer 1

Textbook Question

Chapter 1, Problem 32CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 32CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

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Answer 2

Textbook Question

Chapter 1, Problem 32CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 32CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

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

Answer 3

Textbook Question

Chapter 1, Problem 32CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 32CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

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

Answer 4

Textbook Question

Chapter 1, Problem 32CR

The report “Testing the Waters 2009” (nrdc.org) included information on the water quality at the 82 most popular swimming beaches in California. Thirty-eight of these beaches are in Los Angeles

Chapter 1, Problem 32CR, The report Testing the Waters 2009 (nrdc.org) included information on the water quality at the 82

a. Construct a dotplot of the percent of tests failing to meet water quality standards for the Los Angeles County beaches. Write a few sentences describing any interesting features of the dotplot.
b. Construct a dotplot of the percent of tests failing to meet water quality standards for the beaches in other counties. Write a few sentences describing any interesting features of the dotplot.
c. Based on the two dolplots from Parts (a) and (b), describe how the percent of tests that fail to meet water quality standards for beaches in Los Angeles County differs from those of other counties.

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

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

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 8

a.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

Answer 9

a.

Expert Solution

Answer 10

a.

Expert Solution

Answer 11

Expert Solution

Answer 12

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the County LA.

Explain the features of the dot plot.

Answer 13

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 1

Answer 14

Explanation of Solution

Calculation:

The given information is the water quality of 82 beaches in County LA and other counties.

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Los Angeles County.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 43. Almost all the data points are lie between 2 and 33. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 16.

Answer 15

b.

Expert Solution

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

Answer 16

b.

Expert Solution

Answer 17

b.

Expert Solution

Answer 18

Expert Solution

Answer 19

To determine

Sketch the dot plot of the percent of tests failing to meet water quality standards for the beaches in the other counties.

Explain the features of the dot plot.

Answer 20

Answer to Problem 32CR

The dot plot is given below:

Introduction to Statistics and Data Analysis, Chapter 1, Problem 32CR , additional homework tip 2

Answer 21

Explanation of Solution

Calculation:

Dotplot:

Software procedure:

Step-by-step procedure to obtain the dotplot using MINITAB software is given below:

Choose Graph > Dot plot.
Choose One Y-Simple and then click OK.
In Graph variables, enter the column of Other Counties.
Click OK.

From the dot plot, it is clear that, an unusually high value in the data is 40. Almost all the data points are lie between 0 and 17. Most of the observations are in the lower end compared to the upper end. A representative value of the data is around 3.

Answer 22

c.

Expert Solution

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 23

c.

Expert Solution

Answer 24

c.

Expert Solution

Answer 25

Expert Solution

Answer 26

To determine

Compare the percent of tests failing to meet water quality standards for the beaches in the County LA and other counties

Answer 27

Explanation of Solution

From the dot plot obtained in Part (a) and (b), a representative value for County LA is around 16 and that of other countries are around 3. That is, the representative value is high for County LA. Both dotplots contain an extreme value. The distribution of County LA is nearly uniform. However, that of other countries are right skewed.

Answer 28

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Answer to Problem 32CR

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Answer to Problem 32CR

Explanation of Solution

Explanation of Solution

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