Distribution-free tests and parametric tests differ in their null hypotheses in that
A) distribution-free tests have a less specific null hypothesis.
B) distribution-free tests make very strong assumptions about the mean.
C) distribution-free tests don't really have a null hypothesis.
D) parametric tests have rather loose null hypotheses.

Question

Quizplus · Accepted Answer

Distribution-free tests do not make assumptions about the underlying distribution of the data and therefore have less specific null hypotheses compared to parametric tests, which assume a specific distribution and make stronger assumptions about the mean.

Distribution-Free Tests and Parametric Tests Differ in Their Null Hypotheses