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Assume the following data Assume that a normal workday is eight hours. Hiring costs are $350 per worker and firing costs (including severance pay) are $850 per worker. Holding costs are $3.00 per unit held per month. Assume that it requires an average of 1 hour and 40 minutes for one worker to assemble one item. Shortages are not permitted. Assume that the ending inventory for June was 600 of these items and the manager wishes to have at least 800 units on hand at the end of October. Assume that the current workforce level is 30 workers. a) Find the total cost for constant workforce level. b) Find the total cost for Chase policy (zero or minimum inventory c) Model the problem as a LP program. d) Find the solution for the LP program and its cost