4. Using the master production plan below, develop an ordering plan and compute the costs and state the best technique(s) to be preferred. 1 2 5 6 7 8 9 Period (weeks) Gross Requirements 15 20 10 25 Lead time=1 week Setup costa $200 Holding cost - $10/week Stockout cost = $10/week a) Lot-for-lot technique (10 pts.) b) Economic order quantity technique (10 pts.) c) Periodic order quantity technique (10 pts.)