Graduation Rates. Refer to Problem 14. a. Determine SST, SSR, and SSE by using the computing formulas. b. Obtain the coefficient of determination. c. Obtain the percentage of the total variation in...

Graduation Rates. Refer to Problem 14.

a. Determine SST, SSR, and SSE by using the computing formulas.

b. Obtain the coefficient of determination.

c. Obtain the percentage of the total variation in the observed graduation rates that is explained by student-to faculty ratio (i.e., by the regression line).

d. State how useful the regression equation appears to be for making predictions.