# Regression

Assignment 1
Instructions

Regression

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Regression
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The table gives the retail value of a 2004 Corvette Z06 and the miles driven. (Source: Kelly Blue Book website, November 3, 2004)

Mileage Retail Value
13,000 \$46,100
18,000 \$44,600
20,000 \$43,300
25,000 \$41,975
29,000 \$40,975
32,000 \$39,750

1. Find the correlation coefficient for the data.
2. What is the significance of this value of the correlation coefficient?
3. What is the least-squares regression line for the data?
4. Use the least-squares line to predict the retail value of the model car with a mileage of 30,000.

5. Use the least-squares line to predict the retail value of the model car with 30,000 miles.

6. What is the retail value of a model car with 35,000 miles?

Assignment 2

The table gives the retail value of a 2004 Corvette Z06 and the miles driven. (Source: Kelly Blue Book website, November 3, 2004)

 Mileage Retail Value 13,000 \$46,100 18,000 \$44,600 20,000 \$43,300 25,000 \$41,975 29,000 \$40,975 32,000 \$39,750

1. Find the correlation coefficient for the data.
2. What is the significance of this value of the correlation coefficient?
3. What is the least-squares regression line for the data?
4. Use the least-squares line to predict the retail value of the model car with a mileage of 30,000.

5. What is the retail value of a model car with a mileage of 35,000?

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