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    Test of hypothesis uisng ANOVA

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    A dietician attached to a consumer advocate agency is asked to test three popular diet pills for efficiency. Twenty-one people were randomly assigned to the three different diet pills. Records of how much weight these people lost in a month are tabulated below.

    Pill 1 Pill 2 Pill 3

    14 11 24
    18 12 31
    20 10 17
    12 20 12
    22 12 17
    19 16 14
    15 13 16

    At a 0.05 level of significance, test the hypothesis that the mean weight losses for the three diet pills is the same.

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    Solution Summary

    The solution tests the hypothesis that the mean weight losses for three diet pills is the same using ANOVA.