New approximations to the exact distribution of the kruskal-wallis test statistic
- 1 January 1976
- journal article
- other
- Published by Taylor & Francis in Communications in Statistics - Theory and Methods
- Vol. 5 (14) , 1335-1348
- https://doi.org/10.1080/03610927608827446
Abstract
Several approximations to the exact distribution of the Kruskal-Wallis test' statistic presently exist. There approximations can roughly be grouped into two classes: (i) computationally difficult with good accuracy, and (ii) easy to compute but not as accurate as the first class. The purpose of this paper is to introduce two nev approximations (one in the latter class and one which is computationally more involved)y and to compare these with other popular approximations. These comparisons use exact probabilities where available and Monte Carlo simulation otherwise.Keywords
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