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A history professor hoped to be able to predict final test grades based on the results of midterm exams. He drew on data from a variety of teachers who were all teaching the same course. He was able to get the following information: Midterm Scores (x) 75 55 65 82 88 64 Final Exam Scores (y) 89 65 77 92 90 76   Calculation will make use of the information listed below as well.  Sy = 10.597   Sx = 12.374       x̅  = 71.5         ȳ  = 81.5          r = 0.945 What are the values for each of the following? (1) b  (2) a  (3) If the professor's class received an 88 on the midterm, what do you think the class will get on the final exam?

A history professor hoped to be able to predict final test grades based on the results of midterm exams. He drew on data from a variety of teachers who were all teaching the same course. He was able to get the following information: Midterm Scores (x) 75 55 65 82 88 64 Final Exam Scores (y) 89 65 77 92 90 76   Calculation will make use of the information listed below as well.  Sy = 10.597   Sx = 12.374       x̅  = 71.5         ȳ  = 81.5          r = 0.945 What are the values for each of the following? (1) b  (2) a  (3) If the professor's class received an 88 on the midterm, what do you think the class will get on the final exam?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A history professor hoped to be able to predict final test grades based on the results of midterm exams. He drew on data from a variety of teachers who were all teaching the same course. He was able to get the following information:

Midterm Scores (x) 75 55 65 82 88 64
Final Exam Scores (y) 89 65 77 92 90 76

 

Calculation will make use of the information listed below as well. 

Sy = 10.597   Sx = 12.374       x̅  = 71.5         ȳ  = 81.5          r = 0.945

What are the values for each of the following?

(1) b 

(2) a 

(3) If the professor's class received an 88 on the midterm, what do you think the class will get on the final exam?

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