The Null Hypothesis of the Wilcoxon Signed-Rank Test Can Be

question 22

Multiple Choice

The null hypothesis of the Wilcoxon signed-rank test can be stated in words as follows:

• A)The rank sum for each group will be equal,and any differences are due to sampling error.
• B)The expected value for each rank sum will be equal to the average of the rank sums for the positive and negative differences.
• C)The expected value for difference scores will be less than the average of the rank sums for the positive and negative differences
• D)The rank sum for each group will be less than the total rank sum.

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