Part 1 of 3: Suppose you are a researcher in a hospital. You are experimenting with a new tranquilizer. You collect data from a random sample of 9 patients. The period of effectiveness of the tranquilizer for each patient (in hours) is as follows: 2.6, 2.1, 2.9, 3, 2, 2.1, 2.7, 2.1, 2.3, 2.6   What is the 2-decimal small number in a 95% confidence interval?   Part 2 of 3: What is the 2-decimal large number in a 95% confidence interval?     Part 3 of 3: What is the 2-decimal margin of error