34. Using Confidence Intervals to Test Hypotheses When analyzing the last digits of tele- phone numbers in Port Jefferson, it is found that among 1000 randomly selected digits, 119 are zeros. If the digits are randomly selected, the proportion of zeros should be 0.1. a. Use the critical value method with a 0.05 significance level to test the claim that the propor- tion of zeros equals 0.1. b. Use the P-value method with a 0.05 significance level to test the claim that the proportion of zeros equals 0.1. c. Use the sample data to construct a 95% confidence interval estimate of the proportion of zeros. What does the confidence interval suggest about the claim that the proportion of zeros equals 0.1? d. Compare the results from the critical value method, the P-value method, and the confidence interval method. Do they all lead to the same conclusion?

34. Using Confidence Intervals to Test Hypotheses When analyzing the last digits of tele- phone numbers in Port Jefferson, it is found that among 1000 randomly selected digits, 119 are zeros. If the digits are randomly selected, the proportion of zeros should be 0.1. a. Use the critical value method with a 0.05 significance level to test the claim that the propor- tion of zeros equals 0.1. b. Use the P-value method with a 0.05 significance level to test the claim that the proportion of zeros equals 0.1. c. Use the sample data to construct a 95% confidence interval estimate of the proportion of zeros. What does the confidence interval suggest about the claim that the proportion of zeros equals 0.1? d. Compare the results from the critical value method, the P-value method, and the confidence interval method. Do they all lead to the same conclusion?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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