1. Create regression estimates for the following model: HoursSpentStudying = + Gender 2. Interpret the magnitude of the coefficient estimate and comment on the statistical significance. 3. Interpret the coefficient of determination. 4. Create regression estimates for the following model: HoursSpentStudying = + 1Gender + 2Emails + 3FacebookFriends 5. Interpret the magnitude of the coefficient estimates and comment on the statistical significance. 6. Did the coefficient estimate and statistical significance of the Gender variable change when you included additional independent variables? Why or why not? 7. Interpret the coefficient of determination. Specifically, discuss whether or not the \"fit\" improved. Hours Spent Studying Hours Spent Sleeping Hours Enrolled 20 55 18 30 28 11 30 18 35 18 20 25 7 4 6 3 8 22 18 8 20 35 20 10 6 8 15 6 14 4 4 24 7 5 15 14 6 15 4 4 2 10 2 6 6 7 6 8 7 7.5 7.5 8 7 8 8 8 7 9 6 7 6.5 7.5 8 5 6 6 8.5 7.5 7 7.5 6 5 6 7 8 7 7 6 8 7 6 5 7 7 7.5 8 8 7 18 13 18 15 15 16 15 15 18 15 15 16 15 15 17 15 15 14 15 15 15 15 18 16 15 14 16 16 15 15 15 14 15 12 15 16 18 15 16 15 18 15 15 13 5 24 14 22 5 5 12 12 35 8 19 24 30 16 4.5 7 25 12 2 5 6 4.5 10 12 10 10 14 21 35 17 6 10 14 13 5 15 7 7 12 12 5 3 8 12 20 4 4 25 8.5 6 7 7 8 7 7 6 7 7 6 8 4 8 6 6.5 7 7 6 7 6 6.5 7 5.5 7 6 6 7 6 10 7 9 6 8 8 8 7 9 6.5 7 8 7 7 8 7 8 6 6.5 16 16 16 15 15 16 15 17 16 16 16 15 17 15 17 15 18 15 15 15 15 15 18 15 12 17 18 16 14 18 16 15 17 15 15 16 15 15 15 17 15 15 15 15 15 17 13 15 3 8 14 4 3 8.5 9 8 6 6 6.5 7 15 16 14 16 14 18 Emails (0 = up to 10; 1 = 10 to 50; 2 = 51 to 100; 3 = 101 to 200; 4 = 201 to 300; 5 = more than 300) Gender (Male = 0; Female = 1) Facebook Friends (0 = up to 500; 1 = 500 up to 1000; 2 = 1000 up to 1500; 3 = 1500 to 2000; 4 = more than 2000) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1 1 0 0 1 0 0 1 0 0 0 1 1 1 1 0 1 0 1 1 1 0 1 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 3 3 3 3 4 4 4 4 4 4 2 2 2 2 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 0 1 0 1 0 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 1 1 1 1 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 1 1 1 1 1 1 1 1 4 0 2 3 1 1 1 0 0 2 3 0 2 1 0 1 1 2 3 1 1 0 0 0 2 2 2 2 3 1 1 1 1 1 1 1 1 1 1 1 5 5 5 5 5 5 0 0 1 0 0 0 1 1 1 1 1 4