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4. A sample is selected from a population with a mean of u = 100 and a standard deviation of o = 20. a. If

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4. A sample is selected from a population with a mean of u = 100 and a standard deviation of o = 20. a. If the sample has n = 16 scores, what is the ex- pected value of M and the standard error of M? b. If the sample has n = 100 scores, what is the ex- pected value of M and the standard error of M

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