a) By which method was the model (1) estimated using the information above? Please explain b) Make economic, statistical and econometric interpretations of the model numbered (1)? Economic commentary: Statistical interpretation: Econometric interpretation: It = a + b Y+ b It-1+ u I = 500 +0.3Y+ 0.10 I t-1 sh (0.5) (0.01) (0.04) Here, AY = 0.34-0.99 Y 1-0.27 AYDI t (5) (-4.99) (-2.5) (1) Let the model estimate be as follows.. AL=1.78 -0.67 1-1 +0.65 AX-1 t (3) (-6) (7) R=0.99 dw= 1.15 h-0.65 n-20 F white = 0.3 F 34 -1.645