TABLE 12-15
The director of the MBA program of a state university wanted to know if a one week orientation would change the proportion among potential incoming students who would perceive the program as being good. Given below is the result from 215 students' view of the program before and after the orientation.

-Referring to Table 12-15, which test should she use?
A) X²-test for difference in proportions
B) Z test for difference in proportions
C) McNemar test for difference in proportions
D) Wilcoxon rank sum test

Question

TABLE 12-15
The director of the MBA program of a state university wanted to know if a one week orientation would change the proportion among potential incoming students who would perceive the program as being good. Given below is the result from 215 students' view of the program before and after the orientation.
 
-Referring to Table 12-15, which test should she use?
A) X²-test for difference in proportions 
B) Z test for difference in proportions 
C) McNemar test for difference in proportions 
D) Wilcoxon rank sum test

Quizplus · Accepted Answer

The McNemar test for difference in proportions is appropriate in this scenario as it is used to compare paired proportions where the same individual is measured before and after an intervention (in this case, the orientation program). The data in the table are paired because each respondent's view was recorded both before and after the orientation. Therefore, option C is the best choice. Option A is not appropriate since it tests for difference in two independent proportions, which is not the case here. Option B could be used, but the McNemar test is more appropriate given the paired nature of the data. Option D is not appropriate since it is a test for a difference in location between two independent groups.

TABLE 12-15 The Director of the MBA Program of a State University