00:00  Set up the model
00:44  Solve and read the baseline
01:26  Verify the plan without trusting the solver
02:14  Solve the dual explicitly
02:56  Check complementarity and signs
03:38  Perturb one capacity at a time
04:22  Discover the range for resource one
05:00  Resource two and simultaneous changes
05:42  Rotate the objective
06:24  Introduce a new product and reoptimize
07:08  Interpret a lower-bound marginal
07:47  Choose capacity by net benefit
08:28  Diagnose failures and attempt the exercises
