Mathematics, 09.02.2021 14:00, ray1840

Given a population mean of 27.1 with a standard deviation of 8.4 and a sample size of 10, answer these questions. part A: what is the standard deviation of the sampling distribution of x hat? show your work.
PartB: what does the sample size need to be if you want the standard deviation of the sampling distribution of x hat to be 2.8? show your work.

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Given a population mean of 27.1 with a standard deviation of 8.4 and a sample size of 10, answer the...