Practical Operations Management
2nd Edition
ISBN: 9781939297136
Author: Simpson
Publisher: HERCHER PUBLISHING,INCORPORATED
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Chapter 10, Problem 5P
Summary Introduction
Interpretation: Impact on frequency of ordering when policy’s order size is decreased is to be ascertained.
Concept Introduction: Reorder point is the minimum level of inventory or stock which indicates a firm to restock its inventory. It is an indicator for a firm to restore its stock.
Stock out risk is the risk of having no item in the inventory when demand increases.
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Fisk Corporation is trying to improve its inventory control system and has installed an online computer at its retail stores. Fisk anticipates sales of 97,200 units per year, an ordering cost of $4 per order, and carrying costs of $1.50 per unit. What is the economic ordering quantity? How many orders will be placed during the year? What will the average inventory be? What is the total cost of ordering and carrying inventory?
An increase in Economic Order Quantity will lead to
Increase in Ordering cost
Reduction in inventory carrying cost
Reduction in ordering cost and increase in inventory carrying cost
Increase in ordering cost and reduction in inventory carrying cost
A company is targeting a cycle service level of 25%. What should their reorder point be if they have an average weekly demand of 100, a weekly demand standard deviation of 20, and a lead time of 5 weeks?
Chapter 10 Solutions
Practical Operations Management
Ch. 10 - Prob. 1DQCh. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Prob. 4DQCh. 10 - Prob. 5DQCh. 10 - Prob. 6DQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4P
Ch. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 2.1QCh. 10 - Prob. 2.2QCh. 10 - Prob. 2.3QCh. 10 - Prob. 2.4QCh. 10 - Prob. 3.1QCh. 10 - Prob. 3.2QCh. 10 - Prob. 3.3QCh. 10 - Prob. 3.4Q
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- What are the primary trade-offs captured in the Economic Order Quantity (EOQ) Model? Inventory Cost Variable Cost of Units Revenue Fixed Cost When Placing Ordersarrow_forwardXemex has collected the following inventory data for the six items that it stocks: ITEM CODE UNIT COST ($) ANNUAL DEMAND (UNITS) ORDERING COST ($) CARRYING COST AS A PERCENTAGE OF UNIT COST 1 10.60 600 40 20 2 11.00 450 30 25 3 2.25 500 50 15 4 150.00 560 40 15 5 4.00 540 35 16 6 4.10 490 40 17 Lynn Robinson, Xemex’s inventory manager, does not feel that all of the items can be controlled. What ordered quantities do you recommend for which inventory product(s)?arrow_forwardDunstreet’s Department Store would like to develop an inventory ordering policy of a 95 percent probability of not stocking out. To illustrate your recommended procedure, use as an example the ordering policy for white percale sheets. Demand for white percale sheets is 5,000 per year. The store is open 365 days per year. Every two weeks (14 days) inventory is counted and a new order is placed. It takes 10 days for the sheets to be delivered. Standard deviation of demand for the sheets is five per day. There are currently 150 sheets on hand. How many sheets should you order?arrow_forward
- Wang Distributors has an annual demand for an airport metal detector of 1,421 units. The regular cost of a detector for Wang is $363. The storage cost is estimated to be 20% of the unit cost, and the cost of placing each order is $25. If Mr. Wang, the owner, orders quantities of 300 or more, the cost of one detector will be $365. Wang Distributors has a year of 250 business days. When a new order of detectors is made, the supplier takes 3 days to deliver it. Show your work. 1. What inventory management model should we use to solve this problem? Model Economic Quantity to Produce Model Economic Quantity to Order Model to handle dependent demand Model for discount purchases 2. What is the optimal quantity of detectors that should be made in each order if purchased at full price? Response 3. What is the optimal quantity of detectors that should be made in each order if purchased at a discount price? Response 4. After validating the quantity of detectors that should be made in each order…arrow_forwardDunstreet's Department Store would like to develop an inventory ordering policy of a 90 percent probability of not stocking out. To illustrate your recommended procedure, use as an example the ordering policy for white percale sheets.Demand for white percale sheets is 3,400 per year. The store is open 365 days per year. Every two weeks (14 days) inventory is counted and a new order is placed. It takes 12 days for the sheets to be delivered. Standard deviation of demand for the sheets is five per day. There are currently 170 sheets on hand. How many sheets should you order?arrow_forwardAlina Limited is a manufacturer of widgets orders components for use in manufacturing. The estimated demand for the components during the coming year is 15,000. Order costs are $100 per order; carrying costs are $12 per component. Using the economic order quantity model What is Alina Ltd’s optimum order quantity? If the supplier guarantees a three (3) day delivery on any order that is placed, What is the re-order point?arrow_forward
- As the Manager of Branson’s Department Store, you are responsible for ensuring that reorder quantities for the various items have been correctly established. You decide to test one item and choose product Z. A continuous review inventory policy has been used, so you examine this as well as other records and come up with the following data: Cost per unit $35 Holding cost 20 percent of unit cost Average daily demand 10 units Ordering cost $30 per order Standard deviation of daily demand 3 units Delivery lead time 4 days Because customers generally do not wait but go elsewhere, you decide on a service probability of 90 percent. Assume that Branson’s Department Store operates 320 days per year. [What is the annual demand (D)? Determine the optimal order quantity, Q*. Determine the reorder point (R) if demand is constant. Determine the reorder point (R) if demand is varies.arrow_forwardDavid's Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimates that the demand for the salamis is pretty steady at 175 per month. The salamis cost Gold $1.85 each. The fixed cost of calling his brother in New York and having the salamis flown in is $200. It takes three weeks to receive an order. Gold's accountant, Irving Wu, recommendsan annual cost of capital of 22 percent, a cost of shelf space of 3 percent of the value of the item, and a cost of 2 percent of the value for taxes and insurance. How many salamis should Gold have on hand when he phones his brother to send another shipment?arrow_forwardDavid’s Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimates that the demand for the salamis is pretty steady at 175 per month. The salamis cost Gold $1.85 each. The fixed cost of calling his brother in New York and having the salamis flown in is $200. It takes three weeks to receive an order. Gold’s accountant, Irving Wu, recommends an annual cost of capital of 22 percent, a cost of shelf space of 3 percent of the value of the item, and a cost of 2 percent of the value for taxes and insurance.a. How many salamis should Gold have flown in and how often should he order them?b. How many salamis should Gold have on hand when he phones his brother to send another shipment?c. Suppose that the salamis sell for $3 each. Are these salamis a profitable item for Gold? If so, what annual profit can he expect to realize from this item? (Assume that he operates the system optimally.)d. If the salamis…arrow_forward
- The materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. She also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four days. If the order size was 1,000 kilograms of resin, what would be the average inventory level?arrow_forwardWilliam Beville's computer training school, in Richmond, stocks workbooks with the following characteristics: Demand D Ordering cost S Holding cost H a) The EOQ for the workbooks is (round your response to the nearest whole number). b) What are the annual holding costs for the workbooks? Annual Holding Cost = Average Inventory x Annual Holding Cost per Item = c) What are the annual ordering costs? Annual Ordering Cost = Ordering Cost per Order Number of Orders Q H=$ = Ordering Cost per Order x (Total Annual Demand/Order Size) D = $ (round your response to the nearest whole number). 19,400 units/year $26/order $4/unit/year (round your response to the nearest whole number).arrow_forwardFisk Corporation is trying to improve its inventory control system and has installed an online system at its retail stores. Fisk anticipates sales of 58,800 units per year, an ordering cost of $4 per order, and carrying costs of $1.50 per unit. In the second year, Fisk Corporation finds that it can reduce ordering costs to $1 per order, but carrying costs will stay the same at $1.50 per unit. a-1. What is the economic ordering quantity for the second year? Economic ordering quantity (EOQ) a-2. How many orders will be placed during the second year? Number of orders a-3. What will the average inventory be for the second year? Average inventory Total costs units units a-4. What is the total cost of ordering and carrying inventory for second year? LAarrow_forward
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