Probabilities of the Type I Errors of the Welch Tests for the Behrens-Fisher Problem
- 1 September 1971
- journal article
- research article
- Published by JSTOR in Journal of the American Statistical Association
- Vol. 66 (335) , 605
- https://doi.org/10.2307/2283538
Abstract
The probabilities of the Type I errors of the Welch approximate-t test and the Aspin-Welch test for the Behrens-Fisher problem have been calculated for selected sets of degrees of freedom and nominal significance levels. The results show satisfactory agreement to the desired level. Thus, in practice, one can just use the usual t-table to carry out the Welch approximate t-test without much loss of accuracy.Keywords
This publication has 0 references indexed in Scilit: