The two-sample t test versus satterthwaite's approximate f test

1 January 1989

journal article
research article
Published by Taylor & Francis in Communications in Statistics - Theory and Methods

Vol. 18 (11) , 3963-3975
https://doi.org/10.1080/03610928908830135

Abstract

A comparison between the two-sample t test and Satterthwaite's approximate F test is made, assuming the choice between these two tests is based on a preliminary test on the variances. Exact formulas for the sizes and powers of the tests are derived. Sizes and powers are then calculated and compared for several situations.

Keywords

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