Last School Year, the Student Body of a Local University $$\begin{array} { l l } \text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$$

Multiple Choice

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. $$\begin{array} { l l } \text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$$ 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.At a .05 level of significance, the null hypothesis

A) should not be rejected.
B) should be rejected.
C) was designed wrong.
D) cannot be tested.