1. What is the purpose of regression?

2. Will a predicted value give you the same scores as those in your original data set?

3. Why or why not?

4. What is the purpose of the Standardized Regression Coefficient

Predicting College GPA

A college counselor knows there is a negative correlation between the number hours of TV watched per week and GPA. Here's the supporting data:

TV in

Hours

Per

Week GPA

14 3.1

10 2.4

20 2.0

7 3.8

25 2.2

9 3.4

15 2.9

13 3.2

4 3.7

21 3.5

4. If a student is watching 18 hours of TV per week, what is his or her projected GPA?

5. If a student is watching 32 hours of TV per week, what is his or her projected GPA?

6. What is the Standardized Regression Coefficient for these data?