$1.$ Compute the total cost for each aggregate plan using these unit costs: PROB Regular output $-$ $$40$ Overtime $=$ $$50$ Subcontract $-$ $$60$ Average Balance Inventory $=$ $$10$ Jan Mar Jun $30030020$ Feb $32030020$ D $320300200$ Apr $340300200$ May $320300203203002000$ a$.$ Month Forecast Output Regular Overtime Subcontract Output$-$Forecast Inventory Beginning Ending Average $0$Jul Aug Oct Nov b$.$ Month Dec Sep $360320340380400400300300300203020203002040300204030300307060$ Forecast Output Regular Overtime Subcontract Output$$Forecast Inventory Beginning Ending Average Chapter Eleven Aggregate Planning and Master Scheduling