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A random sample of size 15 was taken from a normally distributed population with a population...

A random sample of size 15 was taken from a normally distributed population with a population mean 26 and a population standard deviation 4.

Determine each of the following about the sampling distribution of the sample mean.

Round your answer to at least 3 decimal places where appropriate.

a) μx_=   

b) σx_=   

c)  Can we conclude that the sampling distribution of the sample mean is normal?

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Answer #1

Solution) Given that 26 6 4 lr 26 033 ) 26 b) 6 033 The samplins distributon of the sample mean is hor mal distri bution Yes

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