That is false right because you use the f-test for variances and t-test for means...?

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- Nov 13th 2007, 04:03 PMbeetzTesting two variances is the same as testing two means?
That is false right because you use the f-test for variances and t-test for means...?

- Nov 13th 2007, 11:38 PMCaptainBlack
You use different tests because the statistics in question have different

distributions. It is the difference in distributions which significant.

(note in both cases F and t we are assuming normality of the underlying

distributions from which the samples are taken).

RonL