28. Beef consumption Many medical experts believe that eating too much red meat increases the risk of heart disease and cancer. Suppose you want to conduct a survey to determine the annual beef consumption of the typical American, with a margin of error of 1.35 kilograms, and calculate an interval estimate of the maternal mean of the annual beef consumption by the United States. Using 11.35 kg as the projected value for the maternal standard deviation, what is the recommended sample size for each of the following scenarios? a. 90% confidence interval estimates for maternal means of beef consumption. b. 95% confidence interval estimates for maternal means of beef consumption. C. 99% confidence interval estimates for the maternal mean of beef consumption. d. With a fixed margin of error, what happens to the sample size as the confidence level increases? Do you recommend using a 99% confidence interval for this study? Please discuss it.