To estimate the mean number of hours of continuous use until a certainkind of a computer will first require repairs, a certain number X ofcomputers will be timed (in hours). If it can be assumed that the meantime to repair is normally distributed with std deviation=48 hours, whatnumber X observations (in integer) would be needed to estimate the meanhours to repair with 90% confidence that the sample mean is off by atmost 24 hours?

Givenstandard deviation(σ)=48 hoursc=90%Margin of error(E)=24 hours

Answered: To estimate the mean number of hours of…

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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