Operations and Supply Chain Management The Core

LINEAR PROGRAMMING USING THE EXCEL SOLVER appendix A 489
and a Limits Report. Click on each report to have Solver provide these. After highlighting
the reports, click OK to exit back to the spreadsheet. Three new tabs have been created
that correspond to these reports.
The most interesting reports for our problem are the Answer Report and the Sensitivity
Report, both of which are shown in Exhibit A.3. The Answer Report shows the final
answers for the total profit ($64) and the amounts produced (24 hockey sticks and 4 chess
sets). In the constraints section of the Answer Report, the status of each resource is given.
All of machine A and machine B are used, and there are six units of slack for machine C.
Excel Solver Answer and Sensitivity Reports
exhibit A.3
Answer Report
TARGET CELL (MAX)
CELL NAME ORIGINAL VALUE FINAL VALUE
$D$5 Profit Total $12 $64
ADJUSTABLE CELLS
CELL NAME ORIGINAL VALUE FINAL VALUE
$B$4 Changing Cells Hockey Sticks 2 24
$C$4 Changing Cells Chess Sets 2 4
CONSTRAINTS
CELL NAME CELL VALUE FORMULA STATUS SLACK
$D$11 Machine C Used 4 $D$11<=$F$11 Not Binding 6
$D$10 Machine B Used 72 $D$10<=$F$10 Binding 0
$D$9 Machine A Used 120 $D$9<=$F$9 Binding 0
Sensitivity Report
ADJUSTABLE CELLS
CELL
NAME
FINAL
VALUE
REDUCED
COST
OBJECTIVE
COEFFICIENT
ALLOWABLE
INCREASE
ALLOWABLE
DECREASE
$B$4 Changing Cells Hockey Sticks 24 0 2 0.666666667 0.666666667
$C$4 Changing Cells Chess Sets 4 0 4 2 1
CONSTRAINT
CELL
NAME
FINAL
VALUE
SHADOW
PRICE
CONSTRAINT
R.H. SIDE
ALLOWABLE
INCREASE
ALLOWABLE
DECREASE
$D$11 Machine C Used 4 0 10 1E+30 6
$D$10 Machine B Used 72 0.333333333 72 18 12
$D$9 Machine A Used 120 0.333333333 120 24 36