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13 January, 08:32

A 90% confidence interval for the mean height of students

is (60.128, 69.397). What is the value of the margin of error?

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  1. 13 January, 08:52
    0
    4.635

    Step-by-step explanation:

    A confidence interval is:

    CI = μ ± ME

    where μ is the sample mean and ME is the margin of error.

    In other words, the margin of error is half the width of the interval.

    ME = (69.397 - 60.128) / 2

    ME = 4.635
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