If the standard error of the mean for the sampling distribution of random samples of size 25 from a normaldistribution is 2.0, how large must the size of the sample become if the standard error is to be reduced to1.25?O 100O 64O 49O 81

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Answered: If the standard error of the mean for…

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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If the standard error of the mean for the sampling distribution of random samples of size 25 from a normal distribution is 2.0, how large must the size of the sample become if the standard error is to be reduced to 1.25? O 100 O 64 49 O 81