Using the Following Data, the Wilcoxon Signed-Rank Hypothesis Test Is

question 29

Multiple Choice

Using the following data, the Wilcoxon signed-rank hypothesis test is used to test the hypothesis that the test results of a treatment after training are greater than the test results before the treatment. The Wilcoxon critical value is 3 for n = 7 with a 0.05 significance level. What decision should be made regarding the null hypothesis?

• A) Reject the null hypothesis and conclude that the "after" is greater than "before."
• B) Reject the null hypothesis and conclude that the "before" is greater than "after."
• C) Fail to reject the null hypothesis.
• D) Reject the null hypothesis and conclude that there is no difference between the "before" and "after."

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