Which is relatively better a score of 78 on a psychology tes

Which is relatively better: a score of 78 on a psychology test or a score of 49 on an economics test? Scores on the psychology test have a mean of 93 and a standard deviation of 5. Scores on the economics test have a mean of 57 and a standard deviation of 3.

Choose the correct answer below.

A. The economics test score is relatively better because its z score is less than the z score for the psychology test score.

B. The economics test score is relatively better because its z score is greater than the z score for the psychology

test score.

C. The psychology test score is relatively better because its z score is less than the z score for the economics

test score.

D. The psychology test score is relatively better because its z score is greater than the z score for the economics

test score.

Solution

Answer is A

The economics test score is relatively better because its z score is less than the z score for the psychology test score.