Chrome File Edit View History Bookmarks People Tab Window Help 1 0 6 0 7 9 8 Sun Oct 24 9:37 PM My Current Courses - NC State X VA ST 350 Homework #8 Fall 2021 X C Chrome File Edit View History E X + F -> C a webassign.net/web/Student/Assignment-Responses/submit?dep=28014004&tags=autosave#Q9 Update PDF pea! financial id.pdf *Getting enough sleep each night improves ability to manage stress. boosts the immune system. sharpens concentration and memory for inNow_Wra studying and enhances pper overall physical and emotional health. Tips for Better Sleep: Keep regular bedtime/ waking hours Exercise regularly A public service d document * Avoid caffeine and nicotine at from in the evening your friends at * Keep up with schoolwork CAMPUS Minimize sleep disruptions HEALTH with a dark. quiet bedroom SERVICE Itry ear plugs and a sleep mask) een Shot More than 100 million people around the world are not getting enough sleep; the average adult needs between 7.5 and 8 hours of sleep per night. College students are particularly at 0...5.27 PM risk of not getting enough shut-eye. A recent survey of several thousand college students indicated that the total hours of sleep time per night, denoted by the random variable X, can be approximated by a normal model with E(X) = 6.64 hours and SD(X) = 1.16 hours. Question 1. Find the probability that the hours of sleep per night for a random sample of 4 college students has a mean x between 6.63 and 6.94. een Shot (use 4 decimal places in your answer) 0...7.04 PM Question 2. Find the probability that the hours of sleep per night for a random sample of 16 college students has a mean x between 6.63 and 6.94. (use 4 decimal places in your answer) en Shot Question 3. Find the probability that the hours of sleep per night for a random sample of 25 college students has a mean x between 6.63 and 6.94. 0...4.19 PM (use 4 decimal places in your answer) Question 4. The Central Limit Theorem was needed to answer questions 1, 2, and 3 above. O True O False een Shot 0..6.41 PM 2 OCT 24 atv