A recent article claims that the state of Illinois has low tuition rates for its colleges and universities. Cate decides to research the cost of tuition for different colleges in Illinois. The average tuition in Illinois is $28,950 with a standard deviation of $3,470. Which type of inference test should Cate use? a.) Two-way ANOVA b.) One-sample t-test c.) One-sample z-test d.) Chi-squared test for goodness-of-fit