The given variable is a statistic or parameter.

Question

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Answer 1

Question

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

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Answer 2

Question

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

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Answer 3

Question

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

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Answer 4

Question

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

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Answer 5

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

Answer 6

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

Answer 7

Chapter 9, Problem 9.1E

(a)

To determine

To find: The given variable is a statistic or parameter.

Answer 8

(a)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Answer 9

(a)

Expert Solution

Answer 10

(a)

Expert Solution

Answer 11

Expert Solution

Answer 12

Explanation of Solution

Given information:

The value of 72% that is calculated from a sample of 1000 adults in the country.

Concept used:

The whole collection or group of all the elements is known as the population. The sample is the group of elements collected from the population and has similar characteristics to the population.

A population parameter is the calculated value that is calculated from the population. To estimate the population parameter, one can collect a sample, and the value calculated/measured from the sample is known as a statistic.

In this case, the results suggest that 72% of adults favor the penalty for drunk driving. This percentage value of 72% is calculated from the sample of 1000 adults. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 72% is a statistic.

Answer 13

(b)

To determine

To find: The given variable is a statistic or parameter.

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

Answer 14

(b)

To determine

To find: The given variable is a statistic or parameter.

Answer 15

(b)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Answer 16

(b)

Expert Solution

Answer 17

(b)

Expert Solution

Answer 18

Expert Solution

Answer 19

Explanation of Solution

Given information:

The median age of all the people of the country is 35 years.

In this case, the results suggest that 35 years is the median age of country A. This median value of 35 is inferring the population. As this value is measured from all of the people of country A, it is considered a parameter.

Hence, the value of 35 years is a parameter.

Answer 20

(c)

To determine

To find: The given variable is a statistic or parameter.

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

Answer 21

(c)

To determine

To find: The given variable is a statistic or parameter.

Answer 22

(c)

Expert Solution

Answer to Problem 9.1E

The value is a statistic.

Answer 23

(c)

Expert Solution

Answer 24

(c)

Expert Solution

Answer 25

Expert Solution

Answer 26

Explanation of Solution

Given information:

The difference between the mean height of men and women is 14 cm.

In this case, the results suggest that the mean difference in height is 14 cm for men and women. This difference value of 14 cm is calculated from the 20 males and 25 females sample. As this value is measured from the sample and is used to estimate the parameter, it is considered a statistic.

Hence, the value of 14 cm is a statistic.

Answer 27

(d)

To determine

To find: The given variable is a statistic or parameter.

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.

Answer 28

(d)

To determine

To find: The given variable is a statistic or parameter.

Answer 29

(d)

Expert Solution

Answer to Problem 9.1E

The value is a parameter.

Answer 30

(d)

Expert Solution

Answer 31

(d)

Expert Solution

Answer 32

Expert Solution

Answer 33

Explanation of Solution

Given information:

The 15 errors are observed by the proofreader from the complete script.

In this case, the results suggest that 15 errors are found by the proofreader in the complete script. The value 15 errors inferring the population. As this value is measured from the complete script, it is considered a parameter.

Hence, the value of 15 errors is a parameter.