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A population has a mean mu=86 and a standard deviation sigma=22. Find the mean and standard...

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.

Math   Statistics-And-Probability   
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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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