3. Mr. Guo selects a random sample of size n = 16 from a populationthat is normally distributed. The sample is found to have = 78 and² = 4.(a) Mr. Guo wishes to construct a 98% confidence interval for μ, thepopulation mean. Are all conditions met? If not, explain why.(b) Find an appropriate critical number associated with a central 98%confidence interval. Hint: Which distribution should we use?(c) Construct a central 98% confidence interval for μ.

Answered: Mr. Guo selects a random sample of size…

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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Mr. Guo selects a random sample of size n = 16 from a populatio that is normally distributed. The sample is found to have = 78 ar g² = 4. (a) Mr. Guo wishes to construct a 98% confidence interval for u, t population mean. Are all conditions met? If not, explain why.