Question

Part II A Results of a randomized comparative experiment to on blood pressure in African-American men are in the file CALCIUM on 10 men received a calcium supplement for 12 weeks, and a control group of 11 men received a placebo during the same period. All subjects had their blood pressure investigate the effect of calcium the course website. A treatment group of tested before and after the 12-week period. The column labelled Treatment indicates whether the subject received calcium or placebo. The column labelled Begin reports seated systolic blood pressure before treatment. The column labelled End reports seated systolic blood pressure after treatment. The column labelled Decrease reports the decrease in blood pressure Begin End). Lyle RM, et a., "Blood pressure and metabolic effects of calcium supplementation in normotensive white and black men," JAMA, 257(1987), pp. 1772 1776 Make a boxplot of the random variable a. Decrease for the control group. Discuss b. Make a normal quantile plot of the random variable Decrease for the control group. Discuss. c. Find the sample mean and sample standard error of the random variable Decrease for the control group d. Report a 95% confidence interval for the mean of the random variable Decrease for the control group e. Conduct a hypothesis test of whether the true mmHg against the two-sided alternative that the true mean Decrease for the control group is not 0 mm mean Decrease For the control group is 0

Answer 1