The mean and standard deviation of a random sample of n measurements are equal to 33.3 and 3.9, respectively.a. Find a 99% confidence interval for u if n = 121.b. Find a 99% confidence interval for u if n= 484.c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed?a. The 99% confidence interval for u if n= 121 is approximately ( HD(Round to three decimal places as needed.)

Introduction: Confidence interval: The confidence interval is the interval estimate of the unknown…

Answered: The mean and standard deviation of a…

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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