Which of the following is a "robust" test procedure against the violation of distribution assumptions?
A) -test of independence.
B)McNemar test for the difference between two proportions
C) -test for the differences among more than two proportions
D)Wilcoxon rank sum test for difference in medians

Question

Which of the following is a "robust" test procedure against the violation of distribution assumptions?
A) -test of independence. 
B)McNemar test for the difference between two proportions 
C) -test for the differences among more than two proportions 
D)Wilcoxon rank sum test for difference in medians

Quizplus · Accepted Answer

The Wilcoxon rank sum test is a non-parametric test which does not rely on any distributional assumptions. It is robust against violations of normality assumptions and is suitable for comparing medians of two independent groups. The Wilcoxon rank sum test is considered a robust test because it does not assume a specific distribution for the data, making it useful when the distribution is unknown or not normal. The other options all involve assumptions about the distribution of the data, making them less robust in cases where those assumptions are violated.

Which of the Following Is a "Robust" Test Procedure Against