Three wines (California, Australian and Italian) were tasted by a different group of judges as part of an annual food and wine festival.The judges graded the wines on overall quality (A = excellent to F = poor).The appropriate nonparametric procedure to determine differences in perceived quality is ________________________ .
A)Wilcoxon Signed-Rank test
B)Wilcoxon Rank Sum test
C)Kruskal Wallis test
D)Spearman's rho
E)Mann-Whitney test

Question

Quizplus · Accepted Answer

The Kruskal-Wallis test is the appropriate nonparametric procedure for comparing more than two independent samples, such as the perceived quality of three different wines by different groups of judges. This test is used when the assumptions for ANOVA are not met, particularly when the data are ordinal or not normally distributed.

Three Wines (California, Australian and Italian) Were Tasted by a Different