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d/ Find the standard deviation of all the data values. e/ Does the confidence interval calculated in part c/ contain the standard deviation?

d/ Find the standard deviation of all the data values. e/ Does the confidence interval calculated in part c/ contain the standard deviation?

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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My question is letters D and E please and thank you !

Instruction: Please show all your work. You can upload a pdf file or word document file. Answer only not acceptable. Shown are the ages (in years) of the Presidents at the times of their deaths. 67 90 83 85 73 80 78 79 68 71 53 65 74 64 77 56 66 63 70 49 57 71 67 71 58 60 72 67 57 60 90 63 88 78 46 64 81 93 93 board a/ Do the data represent a population or a sample? Proctor b/ Select a random sample of 15 ages and find the variance and standard deviation. c/ Find the 98% confidence intelral of the standard deviation. d/ Find the standard deviation of all the data values. e/ Does the confidence interval calculated in part c/ contain the standard deviation? US 12:46
Transcribed Image Text:Instruction: Please show all your work. You can upload a pdf file or word document file. Answer only not acceptable. Shown are the ages (in years) of the Presidents at the times of their deaths. 67 90 83 85 73 80 78 79 68 71 53 65 74 64 77 56 66 63 70 49 57 71 67 71 58 60 72 67 57 60 90 63 88 78 46 64 81 93 93 board a/ Do the data represent a population or a sample? Proctor b/ Select a random sample of 15 ages and find the variance and standard deviation. c/ Find the 98% confidence intelral of the standard deviation. d/ Find the standard deviation of all the data values. e/ Does the confidence interval calculated in part c/ contain the standard deviation? US 12:46
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