The sign test is used as a nonparametric alternative to which parametric test?
A)one-sample t-test
B)two-independent sample t-test
C)related samples t-test
D)both A and C

Question

Quizplus · Accepted Answer

The sign test is a nonparametric alternative to both the one-sample t-test (choice A) and the related samples t-test (choice C). It is not an alternative to the two-independent sample t-test (choice B), which compares the means of two independent samples and assumes normality and equal variances. Instead, the Wilcoxon rank-sum test is a nonparametric alternative to the two-independent sample t-test.

The Sign Test Is Used as a Nonparametric Alternative to Which