The chi square is a
A) parametric test of mean differences
B) a non-parametric test of frequency differences
C) a parametric test of frequency differences
D) an interval test of rank differences

Question

Quizplus · Accepted Answer

The chi square test is a non-parametric test of frequency differences. It is used to determine whether there is a significant difference between the expected frequencies and the observed frequencies in one or more categories. It does not require any assumptions about the underlying distribution and is used when the data are in the form of nominal or ordinal categories rather than numerical values. Therefore, choice B is the correct answer. Other choices A, C, and D are incorrect as they do not correctly describe the purpose or characteristics of the chi square test.

The Chi Square Is a