In 2003, the Student Body of a State University in Michigan

Short Answer

In 2003, the student body of a state university in Michigan consists of 30% freshmen, 25% sophomores, 27% juniors, and 18% seniors. A sample of 400 students taken from the 2004 student body showed that there are 138 freshmen, 88 sophomores, 94 juniors, and 80 seniors. Test with 5% significance level to determine whether the student body proportions have changed. = ______________
Critical Value = ______________
Conclusion: ______________
The student body proportions ______________ changed since 2003.