Calculate the worker levels and total cost when only one change of worker level happens at the end of May (i.e., the same number of workers for Jan-May, but different in June). The book used is Production and Operations Analysis (6th Edition) its an example of Densepack.

#work days #units CUM units per CUM net Ratio worker/month worker demand (E/D) worker change (end of month) # of workers monthly production CUM production Ending Inventory (I-E) 20 Jan Feb Mar Apr 308 221 366 2.9306 3.51672 2.63754 3.80978 3.22366 2.19795 2.9306 6.448 9.086 12.896 16.12 18.318 312 May 343 433 Jun 900 1420 3320 4020 5520 7920 (these numbers are not the same as in lecture example) inventory sum #work days #units CUM units per CUM net Ratio worker/month worker demand (E/D) worker change (end of month) # of workers monthly production CUM production Ending Inventory (I-E) 20 Jan Feb Mar Apr 308 221 366 2.9306 3.51672 2.63754 3.80978 3.22366 2.19795 2.9306 6.448 9.086 12.896 16.12 18.318 312 May 343 433 Jun 900 1420 3320 4020 5520 7920 (these numbers are not the same as in lecture example) inventory sum