# statistics

posted by angela

Which is relatively better a score of 48
on psychology test or a score of 52 on an
economics test, Scores on the psychology test have a mean of 87 and a standard deviation of 14. Scores on the economics
test have a mean of 53 and a standard deviation of 8.

1. Kuai

Psychology

z =(48-87)/14

z = -2.796
Economics

z =(52-53)/8

z = -0.125

The score of Economics is better.

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