Question

A population has a mean mu=86 and a standard deviation sigma=22. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=248.

Answer #1

Solution :

Given that ,

mean = = 86

standard deviation = = 22

n = 248

sampling distribution of sample mean = = 86

sampling distribution of stnadrad deviation = / n = 22 / 248=1.397

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increased by 1 font size increased by 1 font size decreased by 1
font size decreased by 1 sigma font size decreased by 1 nothing
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