Appliances Inc. is preparing an aggregate production plan for washers for the next four months. The company's expected monthly demand is given below in the chart. The company will have 750 washers in inventory at the beginning of the month and desires to maintain at least that number at the end of each month. Assume hiring and layoffifiring, if necessary, occur at the beginning of the month. Below is other critical data: Production cost per unit =$450 Inventory carrying cost per month per unit =$75 (based on ending month inventory) Hiring cost per worker =$1,500 Firing cost per worker =$3,000 Beginning number of workers =15 Depictureclick here for the Excel Data File Each worker can produce 150 units per month. a. Given the planning information, develop a level production plan and a chase production plan, (Leave no ceils blank - be certain to enter "O" wherever required.) b. Determine the cost of the two plans