True/False (15 pts.) 12 1. An operations plan is an input into the sales and operations planning process. 2. A mixed strategy for adjusting capacity is simpler and easier to implement than any pure strategy 3. Most companies use mixed strategies for managing demand. 4. The transportation method is used for aggregate planning when the strategy for adjusting capacity is hiring and firing workers. 5. Aggregate planning involves the process of determining the timing and quantity of production for an individual item over an intermediate time frame