The sign test is a nonparametric procedure for testing:
A) the amount of skewness in a population.
B) whether two populations have identical probability distributions.
C) whether two populations have identical means.
D) whether two populations have identical medians.

Question

Quizplus · Accepted Answer

The sign test is used to test whether two populations have identical medians without assuming any specific distribution for the data. It involves comparing the signs of the differences between corresponding pairs of observations in the two samples. Therefore, option D is the correct choice.

The Sign Test Is a Nonparametric Procedure for Testing