1) Maraka believes that people who sleep with their phones next to their beds get less sleep than people in general. She knows that on average people get (u) 7.4 hours of sleep a night. She randomly selected 14 volunteers who sleep with their phones next to them and surveyed their sleep. She found the following data on hours of sleep for each person : Person Sleep hours DSI DS2 5 - 0.79 0. 624 3- 21 10.30 SS = 58. 3 8 2-21 4. 8 8 - 1 . 79 3. 204 - 2 . 79 7.78 - 2.79 7.78 -0.79 J O O A UI W W A 0. 624 - 1.79 3. 204 3-21 10.30 7-4 10 2-21 4.88 1 1 1. 21 1. 46 12 6 0. 21 0 . 044 13 4 -1. 79 3. 204 14 6 0. 21 10.044 Help Maraka answer her question by selecting an appropriate t-test and showing your work (Hand calculations must be shown for deviation scores, deviation scores squared, $2, S'M, SM, and tobt). mean = 5. 79 = 7.4 N= 14 d/ = 13