Question: 3. A sample is selected from a population with a mean of 80 and a standard deviation of 20. a. What is the

3. A sample is selected from a population with a mean of

 80 and a standard deviation of  20.

a. What is the expected value of M and the standard error of M for a sample of n 4 scores?

b. What is the expected value of M and the standard error of M for a sample of n 16 scores?

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