When a business unit within an organization acts to optimize its own business objective, it could reduce the effectiveness/efficiency of another unit

A network consists of the following list. Times are given in weeks

Activity Preceding Duration A -- 9 B A 2 C A 12 D A 5 E B 6 F B 8 G C, F 3 H D 2 I H 8 J G, I 6 K E, J 2 a. Draw the network diagram. b. Which activities form the critical path? c. How much slack exists at activities A and F? d. What is the duration of the critical path?

Which of these conditions is NOT necessary for the economic order quantity model to be valid?

A) The item has a constant demand. B) The item has a constant lead time. C) The item has a constant price. D) The item has a constant safety stock.