Hip surgery: In a sample of 127 hip surgeries of a certain type, the average surgery time was 137.7 minutes with a standard deviation of 23.1 minutes. Part: 0/ 2 Part 10f2 (a) Construct a 95% confidence interval for the mean surgery time for this procedure. Round the answers to at least one decimal place. A 95% confidence interval for the mean surgery time for this procedure is I I