1.Prepare an aggregate plan for the coming year, assuming that the sales forecast is perfect. Use the worksheet Bradford Manufacturing that is in the 19 Sales and Operations Planning spreadsheet. In the worksheet, an area has been designated for your aggregate plan solution. Supply the number of packaging lines to run and the number of overtime hours for each quarter. You will need to set up the cost calculations in the spreadsheet. You may want to try using the Excel Solver to find a low-cost solution. Remember that your final solution needs an integer number of lines and an integer number of overtime hours for each quarter. (Solutions that require 8.9134 lines and 1.256 hours of overtime are not feasible.) It is important that your spreadsheet calculations are set up so that any values in the number of lines and overtime hours rows evaluates correctly. Your spreadsheet will be evaluated based on this.