# Question

a. Calculate the z-score for an x of 21.5.

b. Calculate the z-score for an of 21.5 from a sample of size 25.

c. Explain how 21.5 can have such different z-scores.

b. Calculate the z-score for an of 21.5 from a sample of size 25.

c. Explain how 21.5 can have such different z-scores.

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