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    Significance levels

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    The Department of Management Science at Tech has sampled 250 of its majors and compiled the following frequency distribution of grade point averages (on a 4.0 scale) for the previous semester.

    GPA Frequency

    0-0.5 1
    0.5-1.0 4
    1.0-1.5 20
    1.5-2.0 35
    2.0-2.5 67
    2.5-3.0 58
    3.0-3.5 47
    3.5-4.0 18
    250

    The sample mean - for this distribution is 2.5 and the sample standard deviation (s) is
    X

    0.72. Determine if the student GPAs are normally distributed using a .05 level of significance (i.e. a = .05).

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    https://brainmass.com/statistics/hypothesis-testing/significance-levels-quantitative-methods-44608

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    This show show to determine if data is normally distributed with a given level of significance.

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