Question: If random samples, each with n 5 4 scores, are selected from a normal population with m 5 80 and s 5 10, then what

If random samples, each with n 5 4 scores, are selected from a normal population with m 5 80 and s 5 10, then what is the expected value of the mean for the distribution of sample means?

a. 2.5

b. 5

c. 40

d. 80

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