A researcher obtained M = 27 for a sample of n = 36 scores selected from a population with µ = 30 and σ = 18.This sample mean corresponds to a z-score of z = -1.00.

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Quizplus · Accepted Answer

This is true as the formula for calculating the z-score is (M-µ)/(σ/√n), which when substituted with the given values becomes (-3)/(18/√36) = -1. Therefore, a z-score of -1.00 corresponds to a sample mean of M = 27.

A Researcher Obtained M = 27 for a Sample of N