In the production of printed circuit boards, errors in the alignment of electrical connections are a source of scrap. The file RegistrationError contains the registration error, the temperature, the pressure, and the cost of the material (low versus high) used in the production of circuit boards. (Data extracted from C. Nachtsheim and B. Jones, “A Powerful Analytical Tool,” Six Sigma Forum Magazine, August 2003, pp. 30–33.) Develop the most appropriate multiple regression model to predict registration error.