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Please answer both subparts. I will really upvote

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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A sample of size n-60 is drawn from a normal population whose standard deviation is a-7.3. The sample mean is x 42.49. Part 1 of 2 (a) Construct a 99% confidence interval for μ. Round the answer to at least two decimal places. A 99% confidence interval for the mean is << X 5 Part 2 of 2 (b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain. The confidence interval constructed in part (a) would be valid since the sample size is large
Transcribed Image Text:A sample of size n-60 is drawn from a normal population whose standard deviation is a-7.3. The sample mean is x 42.49. Part 1 of 2 (a) Construct a 99% confidence interval for μ. Round the answer to at least two decimal places. A 99% confidence interval for the mean is << X 5 Part 2 of 2 (b) If the population were not approximately normal, would the confidence interval constructed in part (a) be valid? Explain. The confidence interval constructed in part (a) would be valid since the sample size is large
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