The article “Effects of a Rice-Rich Versus Potato-Rich Diet on Glucose, Lipoprotein, and Cholesterol Metabolism in Noninsulin-Dependent Diabetics” (Amer. J. Clinical Nutr., 1984: 598–606) gives the accompanying data on cholesterolsynthesis rate for eight diabetic subjects. Subjects were fed a standardized diet with potato or rice as the major carbohydrate source. Participants received both diets for specified periods of time, with cholesterol-synthesis rate (mmol/day)

measured at the end of each dietary period. The analysis presented in this article used a distribution-free test. Use such a test with significance level .05 to determine whether the true mean cholesterol-synthesis rate differs significantly for the two sources of carbohydrates.

Cholesterol-Synthesis Rate Subject 1 2 3 4 5 678 Potato 1.88 2.60 1.38 4.41 1.87 2.89 3.96 2.31 Rice 1.70 3.84 1.13 4.97 .86 1.93 3.36 2.15