Explain Comparison of two regression models.
You have been specified a report that presents two regression models with different numbers of independent variables. You don't have the data so you can't re-compute the regression models. Nonetheless you have been asked to determine which model is better. Explain how can you reasonably compare them?
1. Use R-square
2. Use Adjusted R-square
3. Use coefficient of determination
4. You cannot compare models with different numbers of independent variables