A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with 30 mean and standard deviation 8.

Question 13 of 14 (1 point) | Attempt 4 of Unlimited View question in a popup 7.2 Section Exercise 46 (calc) How much do you study? A survey among freshmen at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 30 and standard deviation 8. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimal places. (a) Find the 93 percentile of the number of hours studying. (b) Find the 38 percentile of the number of hours studying. (c) Between what two values are the middle 86% of the hours spent studying