5.20 Average movie length on Netflix. Refer to Exercise 5.18. Suppose that the true mean movie length is 98.6 minutes, and you plan to take an SRS of n = 50 movies. a. Explain why it may be reasonable to assume that the average x is approximately Normal even though the population distribution is likely skewed to the right. b. Sketch the approximate Normal curve for the sample mean, making sure to specify its mean and standard deviation. c. What is the probability that your sample mean will differ from the population mean by more than 2 minutes?