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A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 101, and the sample standard deviation, s, is found to be 8. (a) Construct a 98% confidence interval about u if the sample size, n, is 24. (b) Construct a 98% confidence interval about u if the sample size, n, is 18. (c) Construct a 95% confidence interval about u if the sample size, n, is 24,

A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 101, and the sample standard deviation, s, is found to be 8. (a) Construct a 98% confidence interval about u if the sample size, n, is 24. (b) Construct a 98% confidence interval about u if the sample size, n, is 18. (c) Construct a 95% confidence interval about u if the sample size, n, is 24,

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 simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 101, and the sample standard deviation, s, is found to be 8, (a) Construct a 98% confidence interval about u if the sample size, n, is 24. (b) Construct a 98% confidence interval about u if the sample size, n, is 18. (c) Construct a 95% confidence interval about u if the sample size, n, is 24. (d) Should the confidence intervals in parts (a)-(c) have been computed if the population had not been normally distributed? (a) Construct a 98% confidence interval about u if the sample size, n, is 24. Lower bound: Upper bound: (Round to one decimal place as needed.)
Transcribed Image Text:A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 101, and the sample standard deviation, s, is found to be 8, (a) Construct a 98% confidence interval about u if the sample size, n, is 24. (b) Construct a 98% confidence interval about u if the sample size, n, is 18. (c) Construct a 95% confidence interval about u if the sample size, n, is 24. (d) Should the confidence intervals in parts (a)-(c) have been computed if the population had not been normally distributed? (a) Construct a 98% confidence interval about u if the sample size, n, is 24. Lower bound: Upper bound: (Round to one decimal place as needed.)
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