When the paired observations are equal in a Wilcoxon signed-rank test hypothesis ________.
A)observations are removed from the analysis.
B)the ranks are averaged.
C)a zero is assigned to the difference and retained in the analysis.
D)observations are removed from the analysis and n is not changed.

Question

Quizplus · Accepted Answer

When the paired observations are equal in a Wilcoxon signed-rank test, those observations are removed from the analysis because they do not contribute to the test statistic, which is based on the ranks of the differences between paired observations.

When the Paired Observations Are Equal in a Wilcoxon Signed-Rank