1 Aresearcher would like to estimate college GPA after the fall semester (GPA) as a function of a student's combined SAT score (SAT), rank in high school graduating dass [hsrank), and total hours taken through the fall semester (hours). Use the regression results below to answer parts (a) through (h). Dependent variable: GPA (2) SAT 0.002*** (0.0001) 0.002 (0.0001) hsrank -0.003. (0.0001) -0.003*** (0.0001) hours 0.002 (0.0003) 0.002+++ (0.0003) Constant 0.920'. (0.071) 0.663 (0.070) 2.727*** (0.020) Observations 4,137 4,137 0.250 0.167 0.167 0.122 R2 Adjusted R2 Statistic 459.484 829.258 289.422 1573.82B 1494 483 1345.455 448.7405 299.7127 220.3577 Es Note: *p