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Part 3 of 4 (c) Find the 90% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place.

Part 3 of 4 (c) Find the 90% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place.

MATLAB: An Introduction with Applications
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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Part: 2/ 4 Part 3 of 4 (c) Find the 90% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place. <u< Part: 3/4 Part 4 of 4 (d) Which is smaller? Explain why. The % confidence interval is smaller since there is (Choose one) ▼ of a chance that the mean is contained in the interval as opposed to the % confidence interval.
Transcribed Image Text:Part: 2/ 4 Part 3 of 4 (c) Find the 90% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place. <u< Part: 3/4 Part 4 of 4 (d) Which is smaller? Explain why. The % confidence interval is smaller since there is (Choose one) ▼ of a chance that the mean is contained in the interval as opposed to the % confidence interval.
Number of Jobs A sociologist found that in a sample of 55 retired men, the average number of jobs they had during their lifetimes was 7.3. The population standard deviation is 1.8. Part: 0/ 4 Part 1 of 4 (a) Find the best point estimate of the mean. The best point estimate of the mean is Part: 1/4 Part 2 of 4 (b) Find the 95% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place. Part: 2 / 4
Transcribed Image Text:Number of Jobs A sociologist found that in a sample of 55 retired men, the average number of jobs they had during their lifetimes was 7.3. The population standard deviation is 1.8. Part: 0/ 4 Part 1 of 4 (a) Find the best point estimate of the mean. The best point estimate of the mean is Part: 1/4 Part 2 of 4 (b) Find the 95% confidence interval of the mean number of jobs. Round intermediate and final answers to one decimal place. Part: 2 / 4
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