Exhibit 11-2
Last School Year, the Student Body of a Local

Multiple Choice

Exhibit 11-2
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.
$\begin{array}{ll}\text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$ 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 11-2. At 95% confidence, the null hypothesis

A) should not be rejected
B) should be rejected
C) was designed wrong
D) None of these alternatives is correct.