Question: Below is a compilation of student distribution in our four statistics classes from the summer of 2009.

The enrollment report for the summer of 2011 is given as follows.

At the 1% significance level, do the data provide sufficient evidence to conclude that 2011’s enrollment distribution differs from the 2009 distribution?

Show all work – include the hypotheses, the computation of the test statistic, state the critical value, and state the conclusion of the test.