A University Advisor Wants to Determine If There Is a Difference

question 92

Essay

A university advisor wants to determine if there is a difference in the total amount of time spent studying between students taking an online version and a traditional class version of a certain course. The following table contains the sample sizes of each group, and the rank sums for the Wilcoxon rank-sum test. a. Specify the competing hypothesis to determine whether the median study time for online students differs from the median study time for traditional students.
B) What is the value of the Wilcoxon rank-sum test statistic W?
C) Assuming W follows a normal distribution, what is the value of the corresponding test statistic?
D) At the 1% significance level, what is the decision and conclusion?

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