Reconsider the model given in Prob. 6.8-1, While doing sensitivity analysis, you learn that the estimates of the right-hand sides of the two functional constraints are accurate only to within 50 percent. In other words, the ranges of likely values for these parameters are 5 to 15 for the first right-hand side and 6 to 18 for the second right-hand side.

(a) After solving the original spreadsheet model, determine the shadow price for the first functional constraint by increasing its right-hand side by 1 and solving again.

(b) Use the Solver Table to generate the optimal solution and total profit as the right-hand side of the first functional constraint is incremented by 1 from 5 to 15. Use this table to estimate the allowable range for this right-hand side, i.e., the range over which the shadow price obtained in part

(a) is valid.

(c) Repeat part

(a) for the second functional constraint.

(d) Repeat part

(b) for the second functional constraint where its right-hand side is incremented by 1 from 6 to 18.

(e) Use the Solver’s sensitivity report to determine the shadow price for each functional constraint and the allowable range for the right-hand side of each of these constraints.