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

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