The chi-square test is useful for determining:
A)if a nonmonotonic relationship exists between two nominal-scaled variables.
B)if a monotonic relationship exists between two nominal-scaled variables.
C)if a nonmonotonic relationship exists between two interval-scaled variables.
D)if a duotonic relationship exists between two variables.
E)if a duotonic relationship exists between three variables.

Question

Quizplus · Accepted Answer

The chi-square test is used to determine if there is a relationship between two nominal-scaled variables, and can detect non-monotonic relationships. Therefore, option A is the best choice. Option B is incorrect because the chi-square test does not test for monotonic relationships, but rather any type of relationship. Option C is incorrect because the chi-square test is only used for nominal-scaled variables, not for interval-scaled variables. Options D and E are incorrect because there is no such thing as a duotonic relationship, and the chi-square test only tests for relationships between two variables, not three.

The Chi-Square Test Is Useful for Determining