What sample size is needed to estimate a population mean within 70 of the true mean value using a confidence level of 95%, if the true population variance is known to be 225,625? The sample size must be at least (Round up to the nearest whole number.)

What sample size is needed to estimate a population mean within 70 of the true mean value using a confidence level of 95%, if the true population variance is known to be 225,625? The sample size must be at least (Round up to the nearest whole number.)

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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What sample size is needed to estimate a population mean within 70 of the true mean value using a confidence level of 95%, if the true population variance is known to be 225,625?
The sample size must be at least .
(Round up to the nearest whole number.)
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