Explain why your answer is correct. 4. Do problem 8.16 on page 350. 5. Do problem 8.18 on page 350. In addition to (a) and (b) in the textbook, also answer the following: (c) What is the approximate sampling distribution of X when the sample size is n = 50? (d) What is the probability that the average wait time for 50 individuals is longer than 25 seconds?
