Suppose that a Normal model described student scores in a history class. Parker has a standardized
Score (z-score) of +2.5. This means that Parker
A) none of these
B) has a score that is 2.5 times the average for the class.
C) has a standard deviation of 2.5.
D) is 2.5 point above average for the class.
E) is 2.5 standard deviations above average for the class.

Question

Quizplus · Accepted Answer

A z-score of +2.5 indicates that Parker's score is 2.5 standard deviations above the class average.

Suppose That a Normal Model Described Student Scores in a History