A random sample of 20 individuals who graduated from college five years ago were asked to report the

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A random sample of 20
individuals who graduated from college five years ago were asked to report
the total amount of debt (in $) they had when they graduated from college and
the total value of their current investments (in $) resulting in the data set
below.

Debt

6865

12870

16594

3346

3093

14373

8038

18041

22209

9711

20841

12588

15944

20602

15693

23457

11378

3721

20438

8662

1)Develop a regression equation for
predicting current investment based on college debt. What is the expected
change in current investment for each additional dollar of college debt? Give
your answer to four decimal places.

2)What is the predicted current
investment for an individual who had a college debt of $5000? Give your
answer to two decimal places.

3)What proportion of the variation in
current investment is explained by college debt? Give your answer to four
decimal places.