4. Fill the table below by using the information below in order to prepare the master production schedule. Forecasted demand is 50 units per period during 8 weeks. There are 2 inventories at the beginning of the period. According to the rule, if the forecasted inventory level falls negative unless a production is realized, a batch of 90 units is to be scheduled to be produced. Customer orders (committed) are as follows in the first four weeks. (15 POINTS) Period Customer orders 1 80 2 50 3 30 4 10 Beginning inventory= 2 1 2 3 4 5 6 7 8 Forecasted demand 50 50 50 50 50 50 50 50 Customer orders 80 50 30 10 Projected on hand inventory Master Production Schedule 90 90 90 90