1. (6 pts) Let x be a random variable that represents the length of time it takes a student to complete a take-home exam in Dr. Larson's psychology class. After interviewing many students, it was found that x has an approximate normal distribution with mean /= 5.2 hours and standard deviation o = 1.8 hours. a. Convert the x interval x 2 9.7 to a standard z interval. b. What is the P(x 2 9.7)