Which of the Following Statements Is Not True About the Sign

Multiple Choice

Which of the following statements is not true about the sign test for paired data?

A) The sign test is a nonparametric test that can be used in place of the paired t-test.
B) The sign test is a nonparametric test based on the median of a population.
C) The sign test is similar to the paired t-test in that both are based on examining differences between paired observations.
D) The sign test is a nonparametric test based on the mean of a population.