16. Which analysis determines the range of possible values for objective function coefficients and right-hand-side values?

1. Dual analysis.
2. Optimality analysis.
3. Ranging analysis.
4. Sensitivity analysis.

17. Which is the correct interpretation for:

The dual price for b₁ is 2.7

The range of feasibility is 20 b₁ 50

The original value of b₁ was 30

1. There currently is no slack in the first constraint.
2. We would be willing to pay up to $2.70 per unit for up to 20 more Resource 1.
3. If only 25 units of Resource 1 were available, profit would drop by $13.50.
4. All of these are correct.

18. The correct definition for a Decision variable is

1. the values used to determine a quantity of something.
2. the values for the constraints.
3. the values that measure the objective function.
4. the values unique for each constraint.

19. Choose the correct formulation of the Objective Function for a linear programming problem

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

20. Which of the following statements is not accurate?

1. A feasible solution satisfies all constraints.
2. An optimal solution satisfies all constraints.
3. An infeasible solution violates all constraints.
4. A feasible solution point does not have to lie on the boundary of the feasible region.