Question

for a wilcoxon rank sum test, there are two samples with sizes 9 and 8 respectively. the value of W (sum of ranks from the first sample) is 96.5. what is the Z test statistic for wilcoxon rank sum test?
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Answer 1

Answer:

The test is known as the Wilcoxon two-sample test or, more accurately, as the Wilcoxon-Mann-Whitney test. It is a test of the null hypothesis Ho that two independent samples of. observations, and. have come from one and the same population.