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Using the following data, the Wilcoxon signed-rank hypothesis test is used to test the hypothesis that there is no difference between the before and

Using the following data, the Wilcoxon signed-rank hypothesis test is used to test the hypothesis that there is no difference between the before and after populations. What are the sum of the ranks? Before 10 9 10 19 After 8 12 18 15 Seleccione una: O A. 17 OB. 6 and -11 OC. 5 O D. 4 and 6 k

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