Manager T C. Downs of Plum Engines, a producor of lawn mowers and leaf blowers, must develop an aggregate plan given the forecast for engine demand shown in the table. The production department has a regular output capacily of 280 engines per month. The beginning inventory is zero engines Develop a level plan where the backlog is allowed but using overtime is not an option. Then answer the following questions based on the level plan that you have developed 1) What is the monthly regular output? 2) How many backlogs in Month 2 ? 3) How many bocklogs in Month 6 ? 4) What is the averoge inventory in Month 3