please correct answer because the previous answer in cheeg is rong

for example part b should be 600 level of production not 540

Problem 1 A production engineer is in need of an aggregate plan for March through August. The forecasted demand for the next 6 months is shown in the following table: The production engineer has also gathered the following data on the cost parameters: The current work force, in February, is 10 workers. They are working 20 days during each month. It takes 3 hours for a worker to assemble one product. The beginning inventory, available at the end of February is 200 products. No ending inventory is required after the next coming 6 months. 1. Construct a production plan for this aggregate planning problem using the chase strategy. Compute the corresponding cost. 2. Develop a constant workforce strategy by varying only overtime. Compute the corresponding cost. 3. Which plan do you recommend and why