The article "Effects of a Rice-Rich Versus Potato-Rich Diet on Glucose, Lipoprotein, and Cholesterol Metabolism in Noninsulin-Dependent Diabetics" (Amer. J. of Clinical Nutr., 1984: 598-606) gives the accompanying data on cholesterol-synthesis 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.

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Cholesterol-Synthesis Rate Subject123457s 7 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 93 3.36 2.15