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

question 34

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 After is greater than Before.
• B)Reject the null hypothesis and conclude that 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.