a$.$ Identify the range of optimality for each objective function coefficient.

b$.$ Suppose the profit for the economy model is increased by $$6$ per unit, the profit for

the standard model is decreased by $$2$ per unit, and the profit foFIGURE $8\mathrm{.}18$ SENSITIVITY REPORT FOR THE QUALITY AIR CONDITIONING PROBLEM

Variable Cells

Constraintsr the deluxe model is

increased by $$4$ per unit. What will the new optimal solution be$?$

c$.$ Identify the range of feasibility for the right$-$hand$-$side values.

d$.$ If the number of fan motors available for production is increased by $100,$ will the shadow price for that constraint change? Explain.