A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 106, and the sample standard deviation, s, is found to be 10(a) Construct a 90% confidence interval about u if the sample size, n, is 18.(b) Construct a 90% confidence interval about u if the sample size, n, is 22.(c) Construct a 96% confidence interval about u if the sample size, n, is 18.(d) Could we have computed the confidence intervals in parts (a)-(c) if the population had not been normally distributed?E Click the icon to view the table of areas under the t-distribution.(a) Construct a 90% confidence interval about u if the sample size, n, is 18Lower bound: 101.9 ; Upper bound: 110.1(Use ascending order. Round to one decimal place as needed.)(b) Construct a 90% confidence interval about u if the sample size, n, is 22.Lower bound:; Upper bound:(Use ascending order. Round to one decimal place as needed.)Clear allGet more help -TutoringHelp me solve thisMacBook ProG Search or type URLesc&@232$78234

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Answered: (b) Construct a 90% confidence interval…

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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(b) Construct a 90% confidence interval about u if the sample size, n, is 22 Lower bound: : Upper bound: (Use ascending order. Round to one decimal place as needed.)