In Exercise 11.1 on y = college GPA, x1 = high school GPA, and x2 = college board score, E(y) = 0.20 + 0.50x1 + 0.002x2. True or false: Since β1 = 0.50 is larger than β2 = 0.002, this implies that x1 has the greater partial effect on y. Explain.