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QUESTION:-

A model to explain the standardized score on a final exam (fulscore) in terms of percentage of classes attended (atndrate), prior college grade point average (priGPA ), and ACT score is fnlscore = Bo + Batndrate + BypriGPA + B3ACT + BApriGPA2 + + BSACT2 + BopriGPA . atndrate + u. a) What is the effect of atndrate on fulscore? What does B, measure? b) Suppose that the estimated equation for students in Microeconomics is fnlscore = 2.05 - 0.0067 atndrate - 1.63 priGPA - 0.128 ACT + 0.296 priGPA2 (1.36) (0.0102) (0.48) (0.098) (0.101) + 0.0045 ACT2 + 0.005 2priGPA . atndrate (0.0022) (0.0043) n = 680, R2 = 0.229, R2 = 0.222