# Question

A sociologist is studying what factors may affect whether college students would support new laws that would make it a crime for students to purchase papers from the Internet and then turn in the papers as their own work. A random sample of 45 students at a large state university is interviewed and asked to provide a measure of their strength of support for criminalizing the purchase of term papers. A CRIME score from 0 to 25 is obtained from each student, with 0 being totally opposed to criminal penalties and 25 being totally in favor of criminal penalties. Information on the following explanatory variables was also obtained from each student: age of student (A), number of years of college (C), income of parents (I) (in $ 1,000), and gender (G) (0 = female).

The data are shown here:

a. Are there any collinearity problems based on the above data?

b. Use the output from a best subset regression software program to determine which explanatory variables should be included in the model.

c. What other explanatory variables may have been related to the response variable CRIME?

The data are shown here:

a. Are there any collinearity problems based on the above data?

b. Use the output from a best subset regression software program to determine which explanatory variables should be included in the model.

c. What other explanatory variables may have been related to the response variable CRIME?

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