You have collected data from the factory on a critical to quality attribute. The attached Excel spreadsheet lists the response, Y and four potential predictors. You would like to model the response as a simple linear function of a single predictor variable.
Determine the most appropriate simple linear regression model. You must justify your decision and state/show clearly and unambiguously the criteria you used to select the most appropriate model. I would not expect more than a single sheet would be required to evaluate each potential model.