Use a x2 test of Association to test the claim that in the given contingency table, the row variable and the column variable are independent. In this case, we want to see if whether or not students have children is independent of whether or not they attend school full or part time. Be sure to identify the null hypothesis, alternative hypothesis, test statistic, rejection region, conclusion about the null hypothesis, and a final conclusion that addresses the original claim that the two variables are independent (no relationship). a=0.01