Exhibit 12-2
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.
-Refer to Exhibit 12-2. The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals
A)1.645
B)1.96
C)2.75
D)7.815

Question

Exhibit 12-2
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification.  We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.
-Refer to Exhibit 12-2. The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals
A)1.645 
B)1.96 
C)2.75 
D)7.815

Quizplus · Accepted Answer

The Answer of Exhibit 12-2
Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification.  We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.
-Refer to Exhibit 12-2. The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals
A)1.645 
B)1.96 
C)2.75 
D)7.815

Exhibit 12-2 Last School Year, the Student Body of a Local University