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.
|
Freshmen
|
83
|
|
Sophomores
|
68
|
|
Juniors
|
85
|
|
Seniors
|
64
|
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.
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