Assume the local Pearle Vision has the following information on the number of sales orders received and order-processing costs. Month Sales Orders Order-Processing Costs 1 3,000 $ 66,160 2 1,500 40,300 3 4,400 96,560 4 2,800 65,520 5 2,300 55,820 6 1,200 7 2,000 34,480 50,000 Required (a.) Use information from the high- and low-volume months to develop a cost-estimating equation for monthly order-processing costs. $ 11,200 + $ 19.4 (b.) Plot the data on a scatter diagram. Using the information from representative high-and low-volume months, develop a cost estimating equation for monthly order- processing costs. If needed, an Excel worksheet is provided in the following link in order to create the scatter diagram: Scatter_Diagram $ 0 X + $ 0 X X