1. For questions #5-12, refer to the following:Data from a random number of selected students was obtained to see if there is a linear relationship between the hours of study (x) and the grade (y) received on an exam.
2. hours (x):12620125810
3. grade (y):76559894367084
4. What is the value for SS_xy?
5. a.not enough information to calculate an answer
6. b.560.14
7. c.11259.86
8. d.32099.14
9. e.34774.07
10. f.3235.07

2 points

QUESTION 6

1. What is the value for SS_yy?
2. a.244371.21
3. b.2897.43
4. c.21695.21
5. d.78088.57
6. e.225573.43

2 points

QUESTION 7

1. What is the value for SS_xx?
2. a.532.36
3. b.1674.29
4. c.4948.36
5. d.151.71
6. e.4567.71

2 points

QUESTION 8

1. What is the value for the correlation coefficient,r?
2. a..84
3. b.10.69
4. c..99
5. d.9.45
6. e..48

2 points

QUESTION 9

1. What %of the student's grade is directly related to the number of hours of study?
2. a.70.56
3. b.23.04
4. c.10.69
5. d.9.45
6. e.84

2 points

QUESTION 10

1. What is the equation of the regression line?
2. a.y = 61.71 + 1.11 x
3. b.y = 47.35+2.75x
4. c.y =84.86 + 1.11x
5. d.y =2.49+3.69 x
6. e.y =34.80+3.69x

2 points

QUESTION 11

1. Predict the grade on the exam for a student who studied 10 hours?
2. a.71.70
3. b.72.81
4. c.39.38
5. d.84
6. e.95.96

2 points

QUESTION 12

1. Predict the grade on the exam for a student who studied 3hours for the exam.
2. a.42.58
3. b.65.04
4. c.45.87
5. d.88.19
6. e.cannot make a prediction for x =3