Question 3 Using the data set I have provided (midtermxls), estimate the following long-linear regression function. (a) Estimate the model and report the estimated results. (15) (b) Interpret the estimated coefcients of Pt, Pf, and K500) (c) What type of good (Normal, Inferior, Luxuary) is the imported commodity? Explain your answer. (10) (d) What type of elasticity does the commodity have with respect to its imported price? Explain your answer. (1 {ll