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Consider a normal population with µ = 25 and Ï? = 8.0.
(A) Calculate the standard score for a value x of 23.
(B) Calculate the standard score for a randomly selected sample of 45 with X(line on top)= 23.
(C) Explain why the standard scores of 23 are different between A and B above.

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Solution Summary

Calculate the standard scores in this case.

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(A) z = (x- mu)/sigma = (23 - 25)/8 = -0.25

(B) z = (x-bar - ...

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