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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
- 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.
- age (x):259476
- value in 1000's (y):24.516.77.322.35.614.5
- What is the value for SSxy?
- a.-167.94
- b.2499.75
- c.-86.35
- d.163.63
- e.2785.44
2 points
QUESTION 14
- What is the value for SSxx?
- a.998.25
- b.225.82
- c.907.5
- d.29.5
- e.120.25
2 points
QUESTION 15
- What is the value for SSyy?
- a.107.96
- b.294.20
- c.-1286.24
- d.-597.67
- e.982.76
2 points
QUESTION 16
- What is the value of the correlation coefficient, r?
- a.-4.91
- b.-.95
- c.-.26
- d.-.93
- e..35
2 points
QUESTION 17
- What %of the y-variable is directly related to the x-variable?
- a.86.49%
- b.26.45%
- c.93%
- d.8.65%
- e.4.91%
2 points
QUESTION 18
- What is the equation of the regression line?
- a.y =-1.30-2.99x
- b.y =31.27+ 2.93 x
- c.y = -4.56 + 7.96x
- d.y =17.65+1.45 x
- e.y =31.27-2.93x
2 points
QUESTION 19
- What is the value of a 4 year old Ford Taurus based on this linear regression analysis?
- a.22.3
- b.19,550
- c.22,300
- d.15,650
- e.19.55
2 points
QUESTION 20
- What is the predicted value of a 7year old Ford Taurus based on this linear regression model?
- a.10,760
- b.10.76
- c.5,600
- d.5.6
- e.cannot make a prediction on a 7year old 10.76Ford Taurus
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