For a study comparing the proportion of registered Democrats who approve of the president's economic policy with the corresponding proportion for registered Republicans,the appropriate hypothesis test is
A)independent-measures t test.
B)repeated-measures t test.
C)single-factor analysis of variance.
D)chi-square test for independence.

Question

Quizplus · Accepted Answer

The chi-square test for independence is appropriate for comparing proportions between two categorical groups, such as registered Democrats and Republicans, regarding their approval of the president's economic policy.

For a Study Comparing the Proportion of Registered Democrats Who