\(\style{font-family:Times New Roman;}{{\overline x}_A}\) | \(\style{font-family:Times New Roman;}{{\overline x}_D}\) | \(\style{font-family:Times New Roman;}{{\overline x}_C}\) | \(\style{font-family:Times New Roman;}{{\overline x}_B}\) |
|
3.1 | 4.4 | 4.8 | 5.1 | sample mean |
What is the appropriate interpretation of this summary from a multiple comparison of means procedure?
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None of the means appears to differ significantly.
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Population B appears to have a larger mean than population A; and population C appears to have a larger mean than population A.
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The mean of population B appears to be larger than the mean of population C, which appears to be larger than the mean of population D; and the mean of population D appears to be larger than the mean of population A.
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The mean of population B appears to be larger than the mean of population A.