5) Answer the following questions using the sensitivity report shown below (15 min) 15 marks d) Interpret the reduced cost of -6.5 for the variable "z". (4 marks) e) If the coefficient of x changes to 7 and the coefficient of y changes to 4 simultaneously, will the optimal solution remain optimal? Explain (6 marks) 9 0 0 5 0 Variable Cells Final Reduced Objective Allowable Allowable f) How much improvement is Cell Name Value Cost Coefficient increase Decrease expected in the objective function if Type Ax 3 6 2 we reduce the number of available Type By 3 3 4 hours from 55 to 25? Type C2 -6.5 2 6.5 1E+30 (5 marks) Constraints Final Shadow Constraint Allowable Allowable Cell Name Value Price R.H. Side Increase Decrease Wood 1 25 1 25 20 10 Steel 2 30 0 1E+30 hours 55 -1.5 55 72 35 40 30 3