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.