The effect of interaction and rounding error in two-way ANOVA: example of impact on testing for normality
2010 (English)In: Journal of Applied Statistics, ISSN 0266-4763, E-ISSN 1360-0532, Vol. 37, no 10, 1695-1701 p.Article in journal (Refereed) Published
A key issue in various applications of analysis of variance (ANOVA) is testing for the interaction and the interpretation of resulting ANOVA tables. In this note it is demonstrated that for a two-way ANOVA, whether interactions are incorporated or not may have a dramatic influence when considering the usual statistical tests for normality of residuals. The effect of numerical rounding is also discussed.
Place, publisher, year, edition, pages
2010. Vol. 37, no 10, 1695-1701 p.
analysis of variance, rounding error, Shapiro-Wilk test, factorial experiment, interaction
Probability Theory and Statistics
IdentifiersURN: urn:nbn:se:uu:diva-134773DOI: 10.1080/02664760903143925ISI: 000282026800006OAI: oai:DiVA.org:uu-134773DiVA: diva2:373662