True or False The dual value and dual price are identical for a minimization problem.

True or False The last step in any problem-solving process is to choose the correct alternative among those available.

True or False If two or more objective function coefficients are changed simultaneously, further analysis is necessary to determine whether the optimal solution will change.

True or False The first step in the decision-making process is to identify the problem.

Let A, B, and C be the amounts invested in companies A, B, and C. If no more than 50% of the total investment can be in company B, then

	a.	B 5.
	b.	A0.5B + C 0.
	c.	0.5A B0.5C 0.
	d.	0.5A + 0.5B0.5C 0.

If it is an optimal solution for both players in a two-person, zero-sum game to select one strategy and stay with that strategyregardless of what the other player doesthen the game

	a.	has a mixed strategy solution.
	b.	will have alternating winners.
	c.	will have no winner.
	d.	has a pure strategy solution.

The maximization or minimization of a desired quantity is the

	a.	goal of management science.
	b.	decision for decision analysis.
	c.	constraint of operations research.
	d.	objective of linear programming.

Which of the following is a valid objective function for a linear programming problem?

	a.	Min 8xy
	b.	Min 4x + 3y + (1/2)z
	c.	Min 5x2 + 6y2
	d.	Max (x1 + x2)/x3

The range of feasibility measures

	a.	the right-hand-side values for which the objective function value will not change.
	b.	the right-hand-side values for which the values of the decision variables will not change.
	c.	the right-hand-side values for which the dual prices will not change.
	d.	All of these are correct.

A firm that is presently using the economic order quantity model and is planning to switch to the economic production lot size model can expect

	a.	the Q* to increase.
	b.	the maximum inventory level to increase.
	c.	the order cycle to decrease.
	d.	annual holding cost to be less than annual setup cost.

.The composite unit in DEA

	a.	has as output a weighted average of the outputs of the individual units.
	b.	has as input a weighted average of the inputs of the individual units.
	c.	has outputs greater than or equal to the outputs of any individual unit.
	d.	All of these are correct.

For an activity with more than one immediate predecessor activity, which of the following is used to compute its earliest finish (EF) time?

	a.	the largest EF among the immediate predecessors
	b.	the average EF among the immediate predecessors
	c.	the largest LF among the immediate predecessors
	d.	the difference in EF among the immediate predecessors