Attempt 3 of Unlimited View question in a popup 10 2 Section E Pain after surgery: In a random sample of 55 patients undergoing a standard surgical procedure, 20 required medication for postoperative...

Extracted text: Attempt 3 of Unlimited View question in a popup 10 2 Section E Pain after surgery: In a random sample of 55 patients undergoing a standard surgical procedure, 20 required medication for postoperative pain. In a random sample of 92 patients undergoing a new procedure, only 18 required pain medication. Part: 0/ 2 Part 1 of 2 (a) Construct a 95% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures. Let p, denote the proportion of patients who had the old procedure needing pain medication. Use tables to find the critical value and round the answer to at least three decimal places. A 95% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures is P2 Submit Assignment Save For Later Check Answer Skip Part 72021 McGraw Hill LLC. Al Rights Reserved. Terms of Use Privecy Center 71°F Sunny earch