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To investigate the relationship between the marks (in 100) one receives in a course and the amount of time spent studying (weekly in hours) the subject, a random sample of 8 students who had enrolled in a certain course in the last semester was taken study time 48 26 45 42 47 36 50 40 marks 89 52 80 82 91 66 85 80

To investigate the relationship between the marks (in 100) one receives in a course and the amount of time spent studying (weekly in hours) the subject, a random sample of 8 students who had enrolled in a certain course in the last semester was taken study time 48 26 45 42 47 36 50 40 marks 89 52 80 82 91 66 85 80

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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c. If one student's study time is 30 hours, then the predicted mark of that student will be: Answer rounded to two decimal places. d. What percentage of the variation in marks in a course is explained by the regression model? Answer either in percentage or as a decimal (eg: 15.25%, or 0.1525)
Transcribed Image Text:c. If one student's study time is 30 hours, then the predicted mark of that student will be: Answer rounded to two decimal places. d. What percentage of the variation in marks in a course is explained by the regression model? Answer either in percentage or as a decimal (eg: 15.25%, or 0.1525)
Problem 2 To investigate the relationship between the marks (in 100) one receives in a course and the amount of time spent studying (weekly in hours) the subject, a random sample of 8 students who had enrolled in a certain course in the last semester was taken study time 48 26 45 42 47 36 | 50 40 marks 89 52 80 82 91 66 85 80 a. Determine the slope coefficient B1 for the regression of marks on study time. Answer rounded to three decimal places. b. Determine the y-intercept Bo for the regression of marks on study time. Answer rounded to two decimal places.
Transcribed Image Text:Problem 2 To investigate the relationship between the marks (in 100) one receives in a course and the amount of time spent studying (weekly in hours) the subject, a random sample of 8 students who had enrolled in a certain course in the last semester was taken study time 48 26 45 42 47 36 | 50 40 marks 89 52 80 82 91 66 85 80 a. Determine the slope coefficient B1 for the regression of marks on study time. Answer rounded to three decimal places. b. Determine the y-intercept Bo for the regression of marks on study time. Answer rounded to two decimal places.
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