Supplementary Exercises 1) Random samples of size n were selected from populations with the means and variances given here. Find the mean and standard deviation of the sampling distribution of the...

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Extracted text: Supplementary Exercises 1) Random samples of size n were selected from populations with the means and variances given here. Find the mean and standard deviation of the sampling distribution of the sample mean in each case: a) n = 36, µ = 10, o² = 9