Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 71.2 inches tall. (to 2

Question

Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 71.2 inches tall. (to 2 decimal places)

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Orla Orla 4 years 2021-07-26T08:41:17+00:00 1 Answers 16 views 0

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  1. binhan
    0
    2021-07-26T08:42:30+00:00
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    Answer:

    0.7857

    Step-by-step explanation:

    Given :

    Mean = 69 inches

    Standard deviation, = 2.8 inches

    The Zscore of a man who is 71.2 inches

    The ZSCORE is obtained using the relation :

    Zscore = (Score, x – mean) / standard deviation

    Zscore = (71.2 – 69) / 2.8

    Zscore = 2.2 / 2.8

    Zscore = 0.7857

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