2. Look up the following article: Anderson, J.W., Spencer, D.B., Hamilton, C.C., Smith, S.F., Tietyen, J., Bryant, C.A., and Oeltgen, P. (1990). Oat-bran cereal lowers serum total and LDL cholesterol in hypercholesterlemic men. American Journal of Clinical Nutrition 52, 495-499. a. What subjects were recruited into the study? Can the results of this study he used to make inferences to a larger population. Ifso, what population? b. What are the two treatments? . What is the experimental design? Matched Pair, Cross-Over, or Other? c d. What statistical method was used to test the effect of treatment on total cholesterol level? e. Present the sample means for total cholesterol under the two treatments. 1'. Can causal inferences be made? Why or why not? g. Waht are the d.f. and p-value for the test of the null hypothesis that treatment had no effect on total cholesterol? It. What can you conclude about the impact of treatment on total cholesterol