Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual.
Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest tenth
if necessary.
-Which is better, a score of 92 on a test with a mean of 71 and a standard deviation of 15, or a score of 688 on a test with a mean of 493 and a standard deviation of 150?
A)A score of 92
B)Both scores have the same relative position.
C)A score of 688

Question

Quizplus · Accepted Answer

A score of 92 is better because it has a higher z-score, indicating that it is further from the mean in the positive direction.

Find the Z-Score Corresponding to the Given Value and Use