using the given information determine the following:

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a) what are total carrying costs?

b) what are total backorder costs?

c) what are total costs for each period?

d) what are total costs for six periods?

e) if hiring cost is $500 and firing cost is $400, would it be more economical on a per unit basis to use overtime or to fire a temporary person (who can produce a maximum of 40 units per period)? what would be the difference in total costs for the six periods?

Period 1 2 3 Forecast 200 200 300 4 400 500 5 200 Regular time: Overtime: Subcontracting Beginning Inv: Holding cost: Backorder cost: $20 per unit (280 units per period maximum) $30 per unit (40 units per period maximum) None available None Si per unit per period SS Per unit per period