Heng Hiong Fabrication Company has FOUR vendors supplying rubber gaskets (various sizes) to their shop floor. The table (below) shows delivery for the past 12 months. The weightage allocated to vendor evaluation is as follows: On-time delivery (40%), pricing (30%), product quality (30%) a) Calculate the supplier performance score. b) Identify the best and worst performers. NOTE. Provide supporting argument. Show workings. Supplier Order delivery Quality (pcs) (Passed) Supplier-A 600 Supplier-B 400 Supplier-C 500 Supplier-D 500 570 400 490 485 On-time delivery 570 400 480 490 Price/unit $10.30 $11.00 $10.80 $10.50