Identify the problem based on the parameter being estimated. Find the 90% confidence interval for p 1 − p 2 .

Question

Want to see the full answer?

Answer 1

Question

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Use the following table for problems 1–10. The numbers represent the scores (in points) for a sample of 10 college basketball games: 66 49 32 57 35 57 39 41 33 31

A group of 100 people, who lived at varying distances (in kilometers) from an island nuclear power station, were asked if they thought a full evacuation of the area was required, when it went critical. The researches wanted to know if the opinion to evacuate or not depended on how far from the reactor people lived. Partial results of the questionnaire are shown in the table below. 0-3 km distance 3 -6 km distance 6 -9 km distance 9- 12 km distance Totals Evacuation needed X X X 51 Evacuation not X X XX needed Totals 28 28 23 XX XX You are doing a Chi Square test for independence. What is the expected value of the number of people living within a radius of 0-3 km who would say that evacuation was needed? XX denotes row/column totals. Give your answer to 2 decimal places.

Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b) below. Original claim: More than 42% of adults would erase all of their personal information online if they could. The hypothesis test results in a P-value of 0.0156. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. O A. Reject H, because the P-value is less than or equal to a. O B. Fail to reject H, because the P-value is greater than a. O C. Fail to reject H, because the P-value is less than or equal to a. D. Reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. The percentage of adults that would erase all of their personal information online if they could is less than or equal to 42%. O B. There is not sufficient evidence to support the claim that the percentage of adults that…

Answer 2

Question

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Answer 6

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

Answer 7

Chapter 7, Problem 18CRP

(a)

To determine

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

Answer 8

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Answer 9

(b)

To determine

Interpret the confidence interval in the context of the problem.

Identify whether the interval consist of numbers that are all positive or all negative or of different signs.

Compare the proportion of accurate responses from face-to-face interviews and proportion of accurate responses from telephone interviews, at 90% level of confidence.

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 13

Identify the problem based on the parameter being estimated. Find the 90% confidence interval for p 1 − p 2 .

Solution Summary: The author identifies the problem based on the parameter being estimated. The problem is categorized as interval for difference in proportion

Concept explainers

Videos

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.

Want to see the full answer?

Chapter 7 Solutions

Identify the problem based on the parameter being estimated. Find the 90% confidence interval for p 1 − p 2 .

Solution Summary: The author identifies the problem based on the parameter being estimated. The problem is categorized as interval for difference in proportion

Concept explainers

Videos

Identify the problem based on the parameter being estimated. Find the 90% confidence interval for p1−p2.

Want to see the full answer?

Chapter 7 Solutions

Identify the problem based on the parameter being estimated.

Find the 90% confidence interval for p1−p2.