MATH 203 Lecture Notes - Lecture 25: Friedman Test, Test Statistic, Analysis Of Variance

• School: McGill University
• Department: Mathematics & Statistics (Sci)
• Course: MATH 203
• Professor: Michael Wallace

Document Summary

Comparing three or more populaions: non parametric equivalents to anova. Kruskal-wallis test: crd k independent groups corresponding to k diferent treatments, sample sizes n1, n2, , nk. With n = n1+ n2+ + nk: pool the data, sort into ascending order, and assign ranks. If ies then use average ranks: for each tmt group j = 1, 2, , k compute the rank sum rj. Rj