A z score of -1.50 indicates that the raw score is
A) one and one-half percentage points below the mean
B) one and one-half standard deviation units below the mean
C) one and one-half raw score units below the mean
D) negative

Question

Quizplus · Accepted Answer

A z-score of -1.50 represents a value that is 1.50 standard deviations below the mean, indicating that it is unlikely to occur by chance alone. Therefore, option B is the correct choice.

A Z Score of -1