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    Question

    Which of the following tests use rank

    sums?
    A F test Correct Answer Incorrect Answer
    B Chi-square and Sign tests Correct Answer Incorrect Answer
    C Runs test Correct Answer Incorrect Answer
    D Kruskal-Wallis and Wilcoxon test Correct Answer Incorrect Answer

    Solution

    Both the Kruskal-Wallis and Wilcoxon rank-sum tests use the rank-sum method to rank the observation of the combined sample/set. Though the method of ranking is different in both the tests. In the Kruskal-Wallis test, the data were sorted in ascending order before ranking them.

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