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23 December, 09:27

The average time a boulder high varsity lacrosse player plays in a game is 30 minutes with a standard deviation of 7 minutes. nolan's playing time in last week's game against fairview was 48 minutes. (a) calculate the z-score for nolan's playing time against fairview. (round your answer to 2 decimal places.)

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  1. 23 December, 11:37
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    Solving this problem is pretty straight forward.

    We simply use the formula:

    z-score = (x - u) / s

    where,

    x = sample value = 48 minutes

    u = mean value = 30 minutes

    s = standard deviation = 7 minutes

    Therefore,

    z-score = (48 minutes - 30 minutes) / 7 minutes

    z-score = 2.57
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