Question: A normal distribution has a mean of = 65 and a standard deviation of = 20. For each of the following samples, compute

A normal distribution has a mean of μ = 65 and a standard deviation of σ = 20.

For each of the following samples, compute the z-score for the sample mean and determine whether the sample mean is a typical, representative value or an extreme value for a sample of its size.

a. M = 74 for a sample of 4 scores

b. M = 74 for a sample of 25 scores

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