2 = 3 = 4 = 5 6 =7 8 = 9 = 10 = 11 Surgical complications: A medical researcher wants to construct a 99% confidence interval for the proportion of knee replacement surgeries that result in complications. Part: 0 / 2 Part 1 of 2 (a) An article in a medical journal suggested that approximately 13% of such operations result in complications. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.07? A sample of operations is needed to obtain a 99%, confidence interval with a margin of error of 0.07 using the estimate 0.13 for p. X 5