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13 December, 03:44

A supervisor finds the mean number of miles that the employees in a department live from work. Which mileage is within a z-score of 1.5? A. 21 miles B. 24 miles C. 36 miles D. 41 miles

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  1. 13 December, 05:12
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    The z-score tells you how many standard deviations from the mean.

    1.5 * 3.6 = 5.4 miles

    So anything within 5.4 miles of the average (29).

    The range would be:

    29 - 5.4 = 23.6

    to:

    29 + 5.4 = 34.4

    23.6 ≤ x ≤ 34.4

    Answer:

    B) 24 miles
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