Comparing Variation in Two Samples 1) Below are data from students in a statistics class. Use a 0.05 significant level to test the claim that heights of male statistics students have a higher standard deviation than female statistics students. Assume that all populations are normally distributed. Males: n = 20, = 68.9, s = 2.67 Females: n = 17, = 64.2, s = 2.49