3 At the final exam in a statistics class the professor asks each student to indicate how many hours he or she studied for the exam After grading the exam the professor computes the least squares regression line for predicting the final exam score from the number of hours studied The equation of the line is 50 5x a Antoine studies for 6 hours What do you predict his exam score to be b Emma studied for 3 hours longer than Jeremy did How much higher do you predict Emma s score to be