c. In a large class, the average grade in an economics course was 80 with SD of 10 points and the average grade in a psychology course was 75 with SD of 5 points. Based on the grades of the students in those two courses, a regression analysis was performed in order to predict the grade in psychology using the grade in economics. i. Is it possible that the regression model would predict a grade of 70 in psychology for a student who scored 95 in economics? If possible, find the value of the correlation coefficient between the grades in economics and psychology in this class; alternatively, if not possible, explain why. ii. Is it possible that the regression model would predict a grade of 85 in psychology for a student who scored 95 in economics? If possible, find the value of the correlation coefficient between the grades in economics and psychology in this class; if not possible, explain why.
c. In a large class, the average grade in an economics course was 80 with SD of 10 points and the average grade in a psychology course was 75 with SD of 5 points. Based on the grades of the students in those two courses, a regression analysis was performed in order to predict the grade in psychology using the grade in economics. i. Is it possible that the regression model would predict a grade of 70 in psychology for a student who scored 95 in economics? If possible, find the value of the correlation coefficient between the grades in economics and psychology in this class; alternatively, if not possible, explain why. ii. Is it possible that the regression model would predict a grade of 85 in psychology for a student who scored 95 in economics? If possible, find the value of the correlation coefficient between the grades in economics and psychology in this class; if not possible, explain why.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Solve( c part i and ii) only in 30 min and get a thumb up i need perfect soloution plz..
And show neat and clean handwriting plz
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