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Preliminary tests of normality when comparing three independent samples

Björn Lantz (Institutionen för teknikens ekonomi och organisation, Innovation and R&D Management) ; Roy Andersson ; Peter Manfredsson
Journal of Modern Applied Statistical Methods (1538-9472). Vol. 15 (2016), 2, p. 135-148.
[Artikel, refereegranskad vetenskaplig]

This paper uses simulation to explore the performance of a two-stage procedure where a preliminary Shapiro–Wilk test is used to choose between ANOVA and the Kruskal–Wallis test as three-sample location test. The results suggest that the two-stage procedure actually seems to be preferable when conducting such location tests.

Nyckelord: Normality, assumptions, preliminary tests, ANOVA, Kruskal-Wallis, Shapiro-Wilk



Denna post skapades 2015-06-09. Senast ändrad 2017-01-12.
CPL Pubid: 218130

 

Institutioner (Chalmers)

Institutionen för teknikens ekonomi och organisation, Innovation and R&D Management

Ämnesområden

Statistik

Chalmers infrastruktur