Question: A population has a standard deviation of = 30. a. On average, how much difference should exist between the population mean and the sample

A population has a standard deviation of σ = 30.

a. On average, how much difference should exist between the population mean and the sample mean for n = 4 scores randomly selected from the population?

b. On average, how much difference should exist for a sample of n = 25 scores?

c. On average, how much difference should exist for a sample of n = 100 scores?

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