If we have a sample of size 9 with mean 58.43 and variance 15 from a normal population X with unknown variance, and a sample of size 13 with mean 73.64 and variance 30 from a normal population Y with unknown population variance, then, assuming X and Y are independent, what is the significance of this data as evidence that the true population variance of X is more than 20% lower than the true population variance of Y?
If we have a sample of size 9 with mean 58.43 and variance 15 from a normal population X with unknown variance, and a sample of size 13 with mean 73.64 and variance 30 from a normal population Y with unknown population variance, then, assuming X and Y are independent, what is the significance of this data as evidence that the true population variance of X is more than 20% lower than the true population variance of Y?
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 we have a sample of size 9 with mean 58.43 and variance 15 from a normal population X with unknown variance, and a sample of size 13 with mean 73.64 and variance 30 from a normal population Y with unknown population variance, then, assuming X and Y are independent, what is the significance of this data as evidence that the true population variance of X is more than 20% lower than the true population variance of Y?
.35
NONE OF THE OTHERS
.41
.44
.26
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