Exhibit 18-2 Students in Statistics Classes Were Asked Whether They Preferred a Preferred

Multiple Choice

Exhibit 18-2
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 18-2. The null hypothesis should be

A) rejected
B) not rejected
C) revised
D) None of these alternatives is correct.