Suppose you operate a store. The weekly average demand for an item sold in your store...
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Suppose you operate a store. The weekly average demand for an item sold in your store is 20 units. Your upstream supplier charges $100 for each item sold to you. The annual holding cost is 20% of the item cost. It costs $160 to place an order. The lead time is 1 week and your store operates 50 weeks per year. For all the answers, round UP to integers. (a) What is the optimal order quantity? (5 points) (b) Suppose you want to achieve a 95% service level during the lead time, and the weekly demand is normally distributed with a mean of 20 units and standard deviation of 10 units. What will be your reorder point? What will be the safety stock level? What is your average inventory? Note: default case does not include pipeline inventory. (5 points) (c) Suppose you want to achieve a 95% service level during the lead time, and the distribution of weekly demand is listed in the following table. What will be your reorder point? What will be the safety stock level? (5 points) Number of units 15 16 17 18 19 20 21 22 23 24 25 Probability 0.01 0.03 0.08 0.1 0.18 0.26 0.14 0.07 0.05 0.04 0.04 Suppose you operate a store. The weekly average demand for an item sold in your store is 20 units. Your upstream supplier charges $100 for each item sold to you. The annual holding cost is 20% of the item cost. It costs $160 to place an order. The lead time is 1 week and your store operates 50 weeks per year. For all the answers, round UP to integers. (a) What is the optimal order quantity? (5 points) (b) Suppose you want to achieve a 95% service level during the lead time, and the weekly demand is normally distributed with a mean of 20 units and standard deviation of 10 units. What will be your reorder point? What will be the safety stock level? What is your average inventory? Note: default case does not include pipeline inventory. (5 points) (c) Suppose you want to achieve a 95% service level during the lead time, and the distribution of weekly demand is listed in the following table. What will be your reorder point? What will be the safety stock level? (5 points) Number of units 15 16 17 18 19 20 21 22 23 24 25 Probability 0.01 0.03 0.08 0.1 0.18 0.26 0.14 0.07 0.05 0.04 0.04
Expert Answer:
Answer rating: 100% (QA)
a To determine the optimal order quantity we can use the Economic Order Quantity EOQ formula EOQ 2DS H where D Annual demand weekly demand number of w... View the full answer
Related Book For
Matching Supply with Demand An Introduction to Operations Management
ISBN: 978-0073525204
3rd edition
Authors: Gerard Cachon, Christian Terwiesch
Posted Date:
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