statistics

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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.

  • statistics -

    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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