Question
Suppose I found a positive correlation between GPA and the number of hours spent studying for a sample of PSU students. The least-square regression line
- Suppose I found a positive correlation between GPA and the number of hours spent studying for a sample of PSU students. The least-square regression line of GPA on number of hours spent studying have
(a) a positive slope
(b) a negative slope
(c) could be a negative slope or a positive slope, we can't be sure.
2. Suppose that you have two variables X and Y with a correlation of 0.7. What is the coefficient of determination of the least square regression line of Y on X.
3. Consider the same example as in 2. What can you say about the coefficient of determination of the least square regression line of X on Y?
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Precalculus Enhanced With Graphing Utilities (Subscription)
Authors: Michael, Michael Sullivan III, Michael III Sullivan, III Sullivan
6th Edition
0321849108, 9780321849106
