The paper “Sodium content of Lunchtime Fast Food Purchases at Major U.S. Chains” (Archives of Internal Medicine [2010]: 732–734) reported that for a random sample of 850 meal purchases made at Burger King, the mean sodium content was 1,685 mg, and the standard deviation was 828 mg. For a random sample of 2,107 meal purchases made at McDonald’s, the mean sodium content was 1,477 mg, and the standard deviation was 812 mg. Based on these data, is it reasonable to conclude that there is a difference in mean sodium content for meal purchases at Burger King and meal purchases at McDonald’s? Use α = 0.05.