Pain after surgery: In a random sample of 56 patients undergoing a standard surgical procedure, 17 required medication for postoperative pain. In a random sample of 82 patients undergoing a new procedure, only 20 required pain medication. Part: 0 / 2 Part 1 of2 (a) Construct a 98% condence interval for the difference in the proportions of patients needing pain medication between the old and new procedures. Let p1 denote the proportion of patients who had the old procedure needing pain medication and let p2 denote the proportion of patients who had the new procedure needing pain medication. Use the TI-84 Plus calculator and round the answers to three decimal places. A 98% condence interval for the difference in the proportions of patients needing pain medication between the old and new 8 X procedures is D