data envelopement analysis

4. Apply DEA to the following data set in order to measure the efficiency score of the following nine firms: Firm A B D E F G H I Inputs (x1, x2, x3) Outputs (y1,y2) (10, 13, 2) (50, 63) (45, 10, 10) (39, 23) (60, 55, 20) (27, 45) (20, 32, 30) (43, 43) (10, 19, 50) (25, 75) (27, 43, 50) (34, 38) (43, 24, 60) (20, 33) (27, 33, 70) (22, 13) (21, 34, 90) (56, 21) 4. Continue (a) Formulate the DEA problem to evaluate the performance of Firm G. Only G. (b) Show the dual formulation of the above model. (c) Summarize the efficiency score of all firms (A to I)