Question: O Standard Deviation 3 4 points M - UM Z = OM A researcher obtains a sample mean of M=4 and the comparison distribution has

O Standard Deviation 3 4 points M - UM Z = OM A researcher obtains a sample mean of M=4 and the comparison distribution has uM=2 and oM=0.5, calculate a Z score. 2 4 O UT 6

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