On the first day of class, an economics professor administers a test to gauge the math preparedness of her students. She believes that the performance on this math test and the number of hours studied per week on the course are the primary factors that predict a student’s score on the final exam. Using data from her class of 60 students, she estimates Final = β0 + β1Math + β2Hours + . A portion of the regression results is shown in the following table.

a. What is the slope coefficient of Hours?
b. What is the sample regression equation?
c. What is the predicted final exam score for a student who has a math score of 70 and studies 4 hours perweek?

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Standard Intercept40.55 Math Hours Coefficients Error tStat p-value 12.03 2.83E-17 6.06 1.14E-07 8.53 9.06E-12 3.37 0.04 0.57 0.25 4.85