An instructor wants to compare the number of hours a student studies for a calculus exam to the number of hours a student studies for a statistics exam. The instructor takes random samples of his calculus students and statistics students. Determine, at a 5% significance level, whether the two courses have different mean study times for an exam. Assume the population variances are equal. Calculus Statistics Students Students 2.7 2. 1 6.8 2.2 5.4 3.1 3.0 2.5 14.8 4.0 2.5 6.0 4.0 4.5 1.5 3.0 5.0 2. 1 7.0 4.7 3.0 3.6 Permalink Reply