Question: A sample of n 4 scores has a mean

A sample of n = 4 scores has a mean of µ = 75. Find the z-score for this sample:
a. If it was obtained from a population with µ = 80 and σ = 10.
b. If it was obtained from a population with µ = 80 and σ = 20.
c. If it was obtained from a population with µ = 80 and σ = 40.

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  • CreatedSeptember 22, 2015
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