A Sample of N = 4 Scores Is Obtained from a Population

Multiple Choice

A sample of n = 4 scores is obtained from a population with μ = 70 and σ = 8.If the sample mean corresponds to a z-score of 2.00,what is the value of the sample mean?

A) M = 86
B) M = 78
C) M = 74
D) M = 72