Consider a dataset that contains the following ranks: Ranks of Group 1: 1,2,3,5,5,5 Ranks of Group 2: 7,8,9.5,9.5,11,12,13,14,15.5,15.5 What is the rank sum, W1? What is the value of U1? What is the value of the U test statistic?
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W1 = 1 + 2 + 3 + 5 + 5 + 5 = 21 Now, we need to find the value of U1. U1 is calculated as follows: U1 = n1 * n2 + (n1 * (n1 + 1)) / 2 - W1 where n1 is the number of observations in Group 1 and n2 is the number of observations in Group 2. n1 = 6 (since there Show more…
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