Exhibit 19-2
Students in statistics classes were asked whether they preferred a 10-minute break or to get out of class 10 minutes early. In a sample of 150 students, 40 preferred a 10-minute break, 80 preferred to get out 10 minutes early, and 30 had no preference. We want to determine if there is a difference in students' preferences.
-Refer to Exhibit 19-2. The null hypothesis that is being tested is

Question

Quizplus · Accepted Answer

The null hypothesis is typically a statement of no difference or no effect. In this case, we are comparing the proportions of students who prefer a 10-minute break versus getting out 10 minutes early, so the null hypothesis is that there is no difference in the proportion of students who prefer each option. This can be expressed as H0: P = 0.5, where P represents the proportion of students who prefer a 10-minute break. Therefore, the correct choice is D.

Exhibit 19-2 Students in Statistics Classes Were Asked Whether They μ\muμ

Exhibit 19-2
Students in Statistics Classes Were Asked Whether They $\mu$