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Preliminary tests of normality when comparing three independent samples
Chalmers University of Technology, Göteborg, Sweden .
Jönköping University, School of Engineering, JTH, Industrial Engineering and Management. Jönköping University, School of Engineering, JTH. Research area Industrial Production.
University of Borås, Sweden.
2016 (English)In: Journal of Modern Applied Statistical Methods, ISSN 1538-9472, Vol. 15, no 2, 135-148 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2016. Vol. 15, no 2, 135-148 p.
Keyword [en]
Normality, assumptions, preliminary tests, ANOVA, Kruskal-Wallis, Shapiro-Wilk
National Category
Probability Theory and Statistics
Identifiers
URN: urn:nbn:se:hj:diva-28892DOI: 10.22237/jmasm/1478002140Scopus ID: 2-s2.0-84996551501OAI: oai:DiVA.org:hj-28892DiVA: diva2:891559
Available from: 2016-01-07 Created: 2016-01-07 Last updated: 2016-12-08Bibliographically approved

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