isixsigma on MSN3mon
A Guide to Using the Wilcoxon Rank Sum Test: Testing for Non-Normality
The Wilcoxon Rank Sum Test is a non-parametric means of comparing data between two sets. It operates as a useful alternative ...
Simon Fraser University7y
Nonparametric One-Way Analysis of Variance
You can perform a nonparametric one-way ANOVA using Wilcoxon (Kruskal-Wallis), median, Van der Waerden, and Savage scores. In addition, you can test for scale differences across levels of the ...
University of Bristol3y
Rank based non parametric tests
Interpret the p-value from a signed ranks and Wilcoxon sum of ranks test. List the key strengths and weaknesses of a non-parametric test over a parametric approach.
Simon Fraser University7y
Jonckheere-Terpstra Test
The JT option in the TABLES statement requests the Jonckheere-Terpstra test, which is a nonparametric test for ordered differences ... such as the Kruskal - Wallis test (requested by the option ...