MA207-B Spring 2008 Regression Modelling Project - Problem 4
Study habits are investigated in an experiment where 75 participating students record the number of hours spent on classwork outside class, including assignments and preparation for exams. At the end of the semester, grade point averages are obtained.
The experimenters want to start with the simple assumption that there is a linear association between hours spent on classwork and GPA.
Use the data in your comma delimited file to construct a regression model.
You should answer the questions on the assignment page that apply to all problems.
For this specific problem, answer the following questions:
- How would you interpret the slope of the regression line in this problem?
- How would you interpret the intercept of the regression line in this problem?
- Were there any outliers or questionable data points? If so, how did you handle them?
- Did you use a log transform in this model? If so, explain why you chose to use a transform.