Question: Do men’s heights vary more than the heights of women? The nurse at a women’s college has collected data from physical exams. The standard deviation of women’s heights is found to be 2.5 in. The college has now become coed and the first 20 male students have heights with a standard deviation of 2.8 in. Use a 0.025 significance level to test the claim that men’s heights vary more than the heights of women.