1. For questions #13-20, refer to the following:A linear regression analysis is used to find the relationship between the age (x)of a car and the value in 1,000's (y)of that car. A random sample of some Ford Taurus model cars are being used with the results below.
2. age (x):259476
3. value in 1000's (y):24.516.77.322.35.614.5
4. What is the value for SS_xy?
5. a.-167.94
6. b.2499.75
7. c.-86.35
8. d.163.63
9. e.2785.44

2 points

QUESTION 14

1. What is the value for SS_xx?
2. a.998.25
3. b.225.82
4. c.907.5
5. d.29.5
6. e.120.25

2 points

QUESTION 15

1. What is the value for SS_yy?
2. a.107.96
3. b.294.20
4. c.-1286.24
5. d.-597.67
6. e.982.76

2 points

QUESTION 16

1. What is the value of the correlation coefficient, r?
2. a.-4.91
3. b.-.95
4. c.-.26
5. d.-.93
6. e..35

2 points

QUESTION 17

1. What %of the y-variable is directly related to the x-variable?
2. a.86.49%
3. b.26.45%
4. c.93%
5. d.8.65%
6. e.4.91%

2 points

QUESTION 18

1. What is the equation of the regression line?
2. a.y =-1.30-2.99x
3. b.y =31.27+ 2.93 x
4. c.y = -4.56 + 7.96x
5. d.y =17.65+1.45 x
6. e.y =31.27-2.93x

2 points

QUESTION 19

1. What is the value of a 4 year old Ford Taurus based on this linear regression analysis?
2. a.22.3
3. b.19,550
4. c.22,300
5. d.15,650
6. e.19.55

2 points

QUESTION 20

1. What is the predicted value of a 7year old Ford Taurus based on this linear regression model?
2. a.10,760
3. b.10.76
4. c.5,600
5. d.5.6
6. e.cannot make a prediction on a 7year old 10.76Ford Taurus