true or false

5. Annual order costs increase when order size increases while annual carrying costs decrease with increases in order size......................................................................... _________

6. When no safety stock is present, the EOQ is usually at the point where total ordering costs exactly equal total carrying costs.................................................................... _________

7. The responsibility of supervising all functions relating to an incoming shipment of materials usually is assigned to the receiving clerk............................................ _________

8. The purchase requisition usually originates with the purchasing agent.