**Statistical Analysis of Battery Life**A random sample of 12 size AA batteries for toys yields the following results:- Mean: 2.99 hours- Standard deviation: 0.75 hours### Tasks:(a) **Find the critical value, \( t^* \), for a 99% Confidence Interval (CI)** - Provide answer to at least 3 decimal places.(b) **Find the margin of error for a 99% Confidence Interval** - Provide answer to at least 2 decimal places.

Given,sample size(n)=12sample mean(x¯)=2.99standard deviation(s)=0.75

Answered: A random sample of 12 size AA batteries…

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 random sample of 12 size AA batteries for toys yield a mean of 2.99 hours with standard deviation, 0.75 hours. (a) Find the critical value, t", for a 99% CI (give to at least 3 decimal places) t* = (b) Find the margin of error for a 99% CI (give to at least 2 decimal places).