Introduction: In a course called Introduction to Statistics at Carnegie Mellon University, a professor wants to gain insight into his students’ performance on the final exam by analyzing exam grades from earlier in the semester. The data set describes 105 students. The data is in gradebook.xls. Support your answers using concepts from Unit 3. Follow the instructions for creating a poster. Research questions (answer both): In general, which is the best predictor of a student’s score on the final exam, the score on the first midterm or the second midterm? Use Unit 3 concepts to support your answer. What is the predicted score on the final exam for a student who scores a 77 on the first midterm and an 88 on the second midterm?