4. Let p equal the proportion of Americans who favor the death penalty. If a random sample of n = 1, 230 Americans yielded 861 who favored the death penalty, find an approximate 95% confidence interval for p. A. (.6550, .7450) B. (.6249, .7751) C. (.2784, .3213) D. (.6744, .7256) E. (.6980, .7002) 5. Refer to last question. For the hypothesis testing problem Ho : p = .5 vs Ha : p # .5, what is the conclusion under a = .05? A. Do not reject Ho B. Reject Ho