Which Statement Is False About the Wilcoxon Signed-Ranks Test

Multiple Choice

Which statement is false about the Wilcoxon signed-ranks test?

A) It is used for testing a claim that a population of matched pairs has the property that the matched pairs have differences with a median equal to zero.
B) It is used for testing a claim that a single population of individual values has a median equal to some claimed value.
C) It is used for testing a claim that a single population of individual values has a mean equal to some claimed value.
D) It is a nonparametric test.