(a) Assuming that monthly demand will be level during each of the six month period covered by the forecast (e.g.100 per month for each of the first six months), determine an order size that will minimize the sum of ordering and carrying cost for each of the six month period.
(b) Why is it important to be able to assume that demand will be level during each six month period?
(c) If the vendor is willing to offer a discount of $10 per order for ordering multiples of 50 units (e.g. 50, 100, 150), would you advise the manager to take advantage of the offer in either period? If so, what order size would you recommend?
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