For a sample with a mean of M = 76,a score of X = 72 corresponds to z = -0.50.The sample standard deviation is s = 8.

Question

Quizplus · Accepted Answer

This statement is true because we can use the formula for calculating z-score: z = (X - M) / s. We know that X = 72 corresponds to z = -0.50, so we can rearrange the formula to solve for M: M = X - z * s. Plugging in the given values, we get M = 76. Therefore, the sample mean is indeed 76.

For a Sample with a Mean of M = 76,a