Using the following data:

X: 2, 6, 9, 13, 20

Y: 7, 18, 9, 26, 23

and the estimated regression equation for these data as y = 7.6 + .9x

1. What percentage of the total sum of squares can be accounted for by the estimated regression equation?

2. What is the sum of squares due to regression?

3. What is the sum of squares due to error?