Consider the College data set from ISLR's webpage: https://www.statlearning.com/resources-first-edition. Note that the data set can be accessed by clicking on (College.csv) link, and its explanation can be found via clicking in page 5 here: https://cran.r-project.org/web/packages/ISLR/ISLR.pdf, among other places.

Build an inferential model for Outstate or out of state tuition. Please have in mind the ultimate goal here is inference, not prediction. That is, we would like to be able to not only identify those predictors that affect out of state tuition, but also measure and interpret the magnitude of their effects. Apply model selection for regression.