a) What are the zero-one integer programming problems? Why are they so useful in real world situations? Briefly describe a real world example of a zero-one integer programming problem.

(b) Briefly explain the minimax regret criterion for decision making. Is this criterion an optimist, conservative, or middle of the road approach? Give a real world example where the minimax regret criterion can be useful.

(c) How is the simulation process used in Decision Sciences models? What are the advantages of using simulation? What are its limitations? How can a simulation model be verified? Give a real world example where using simulation is appropriate.

(d) Briefly describe the different types of queue systems. Give one real world example for each type.