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The Formula for Z Based on the Mean of a Sample

Question 104

Multiple Choice

The formula for z based on the mean of a sample is:

A) z = (M - $\mu$ _M) / $\mu$ _s.
B) z = (X - $\mu$ _M) / $\mu$ _s.
C) z = (X - $\mu$ _M) / s_M.
D) z = (M - $\mu$ _M) /s_M.

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