EBK OPERATIONS MANAGEMENT
13th Edition
ISBN: 8220103675987
Author: Stevenson
Publisher: YUZU
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Chapter 13, Problem 26P
A small copy center uses five 500-sheet boxes of copy paper a week. Experience suggests that usage can be well approximated by a
a. Determine the economic order quantity, assuming a 52-week year.
b. If the copy center reorders when the supply on hand is 12 boxes, compute the risk of a stockout.
c. If a fixed interval of seven weeks instead of an ROP is used for reordering, what risk does the copy center incur that it will run out of stationery before this order arrives if it orders 36 boxes when the amount on hand is 12 boxes?
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Energyzer , a regional electronics retailer , estimates that sells 13 , 000 4-packs of batteries per year (or 250 per week). Each 4-pack of batteries costs the retailer $2.00; with a carrying cost rate of 32%; and ordering costs of $40.00 per order.
a. Calculate the optimum order period—in terms of weeks ,
b. Calculate the economic order quantity
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Regional Supermarket is open 360 days per year. Daily use of cash register tape averages 10 rolls. Usage appears normally distributed with a standard deviation of 2 rolls per day. The cost of ordering tape is $1 per order, and carrying costs are 40 cents per roll a year. Lead-time is three days.
a) Ignoring the demand uncertainty (i.e., looking only at average values), find the economic order quantity (EOQ) and the reorder point (ROP).
b) Consider now the uncertainty. The order quantity remains the same. If the target is to have a 99% annual service level, what should be the ROP
Chapter 13 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 13 - What are the primary reasons for holding...Ch. 13 - What are the requirements for effective inventory...Ch. 13 - Briefly describe each of the costs associated with...Ch. 13 - What potential benefits and risks do RFID tags...Ch. 13 - Prob. 5DRQCh. 13 - Prob. 6DRQCh. 13 - a. List the major assumptions of the EOQ model. b....Ch. 13 - Explain briefly how a higher carrying cost can...Ch. 13 - What is safety stock, and what is its purpose?Ch. 13 - Prob. 10DRQ
Ch. 13 - What is meant by the term service level? Generally...Ch. 13 - Describe briefly the A-B-C approach to inventory...Ch. 13 - The purchasing agent for a company that assembles...Ch. 13 - Explain how a decrease in setup time can lead to a...Ch. 13 - What is the single-period model, and under what...Ch. 13 - Can the optimal stocking level in the...Ch. 13 - Prob. 17DRQCh. 13 - What trade-offs are involved in each of these...Ch. 13 - Who needs to be involved in inventory decisions...Ch. 13 - How has technology aided inventory management? How...Ch. 13 - To be competitive, many fast-food chains began to...Ch. 13 - As a supermarket manager, how would you go about...Ch. 13 - Sam is at the post office to mail a package. After...Ch. 13 - Give two examples of unethical conduct involving...Ch. 13 - Prob. 1PCh. 13 - a. The following table contains figures on the...Ch. 13 - A bakery buys flours in 25-pound bags. The bakery...Ch. 13 - A large law firm uses an average of 40 boxes of...Ch. 13 - Garden Variety Flower Shop uses 750 clay pots a...Ch. 13 - A produce distributor uses 800 packing crates a...Ch. 13 - A manager receives a forecast for next year....Ch. 13 - A food processor uses approximately 27,000 glass...Ch. 13 - The Friendly Sausage Factory (FSF) can produce hot...Ch. 13 - A chemical firm produces sodium bisulfate in...Ch. 13 - A company is about to begin production of a new...Ch. 13 - Prob. 12PCh. 13 - A mail-order house uses 18,000 boxes a year....Ch. 13 - A jewelry firm buys semiprecious stones to make...Ch. 13 - A manufacturer of exercise equipment purchases the...Ch. 13 - A company will begin stocking remote control...Ch. 13 - A manager just received a new price list from a...Ch. 13 - A newspaper publisher uses roughly 800 feet of...Ch. 13 - Given this information: Expected demand during...Ch. 13 - Given this information: Lead-time demand = 600...Ch. 13 - Demand for walnut fudge ice cream at the Sweet...Ch. 13 - The injection molding department of a company uses...Ch. 13 - A company uses 85 circuit boards a day in a...Ch. 13 - One item a computer store sells is supplied by a...Ch. 13 - The manager of a car wash received a revised price...Ch. 13 - A small copy center uses five 500-sheet boxes of...Ch. 13 - Ned's Natural Foods sells unshelled peanuts by the...Ch. 13 - Regional Supermarket is open 360 days per year....Ch. 13 - A service station uses 1,200 cases of oil a year....Ch. 13 - Caring Hospital's dispensary reorders doses of a...Ch. 13 - A drugstore uses fixed-order cycles for many of...Ch. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Demand for jelly doughnuts on Saturdays at Don's...Ch. 13 - A public utility intends to buy a turbine as part...Ch. 13 - Skinner's Fish Market buys fresh Boston bluefish...Ch. 13 - A small grocery store sells fresh produce, which...Ch. 13 - Demand for devil's food whipped-cream layer cake...Ch. 13 - Prob. 39PCh. 13 - Demand for rug-cleaning machines at Clyde's...Ch. 13 - A manager is going to purchase new processing...Ch. 13 - A Las Vegas supermarket bakery must decide how...Ch. 13 - Offwego Airlines has a daily flight from Chicago...Ch. 13 - UPD Manufacturing produces a range of health care...Ch. 13 - Prob. 1.2CQCh. 13 - Prob. 2.1CQCh. 13 - Grill Rite is an old-line company that started out...Ch. 13 - SARAH LUBBERS AND CHRIS RUSCHE, GRAND VALLEY STATE...Ch. 13 - SARAH LUBBERS AND CHRIS RUSCHE, GRAND VALLEY STATE...Ch. 13 - Prob. 4.3CQCh. 13 - SARAH LUBBERS AND CHRIS RUSCHE, GRAND VALLEY STATE...Ch. 13 - Prob. 4.5CQCh. 13 - Prob. 1OTQCh. 13 - Prob. 2OTQCh. 13 - Prob. 3OTQCh. 13 - Prob. 4OTQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- weekly demand for hamleys (a famous toy brand) at a toy store is normally disrtibuted with a mean of 250 and a standrd devaiton of 150.Ther toy store is opened 7 days a week.The toy store owner continoulsy monitors the inventory .Hamleys takes 2 weeks to fill an order with a standard devaiton of 4 days. 1] how much inventory should the sotre carry at the reorder point. 2] how much inventory would that be at the reorder point if the cycle service was increased to 98%?arrow_forwardFisk Corporation is trying to improve its inventory control system and has installed an online computer at its retail stores. Fisk anticipates sales of 112, 500 units per year, an ordering cost of $3 per order, and carrying costs of $1.20 per unit. a. What is the economic ordering quantity? b. How many orders will be placed during the year? c. What will the average inventory be? d. What is the total cost of ordering and carrying inventory?arrow_forwardSoutheastern Bell stocks a certain switch connector at its central warehouse for supplying field service offices. The yearly demand for these connectors is 15,000 units. Southeastern estimates its annual holding cost for this item to be $24 per unit. The cost to place and process an order from the supplier is $73. The company operates 300 days per year, and the lead time to receive an order from the supplier is 3 working days.arrow_forward
- 20. A large law firm uses a constant 50 reams of copier paper per day. The lead timefor the paper is approximately normal, averages 9 days, and has a standard deviationof 3 days. What reorder point provides a service level of 90%?arrow_forward#14 Can you show me how to do this?arrow_forwardExperience suggests that usage of surgical gloves at a hospital can be approximated by a Normal distribution with a standard deviation of one-half box of surgical gloves per day and a mean of five boxes of surgical gloves per day.If ordering cost is $10 per order, annual holding cost is $10 per box, two days are required to fill an order surgical glove. a) Determine the economic order quantity, (250 workdays a year). b) If the hospital reorders when the surgical gloves on hand and on order is 12 boxes, calculate the risk of a stock-out during a lead time. c) What shortage risk does the hospital incur if it orders 36 boxes when the amount on hand is 12 boxes If a fixed interval of seven days, instead of the EOQ/ ROP model, is used for reorderingarrow_forward
- A local distributor for a national tire company expects to sell approximately 9,600 steel-belted radial tires of a certain size and tread design next year. Annual carrying cost is $16 per tire, and ordering cost is $75. The distributor operates 288 days a year. What is the EOQ? а. b. How many times per year does the store reorder? What is the length of an order cycle? с. d. What is the total annual cost if the EOQ quantity is ordered?arrow_forwardA, B , & Carrow_forwardIf annual sales in are 65,000 units, price per unit is $25, carrying costs are 30%, and fixed costs per order is $100, then EOQ is 1,316.56. True or False?arrow_forward
- Fush uses an average of 40 boxes of paper serviettes a day. The restaurant operates 260 days per year, storage and handling costs for the serviettes are $ 30 per year per box, and it costs approximately $60 to order and receive a shipment of serviettes. a. Calculating the order size would minimise the sum of annual ordering and carrying costs? b. compute the total annual costs using your size from part a?arrow_forwardYellow Press, Inc., buys paper in 1,500-pound rolls for printing. Annual demand is 2,500 rolls. The cost per roll is $800, and the annual holding cost is 15 percent of the cost. Each order costs $50 to process.a. How many rolls should Yellow Press, Inc., order at a time?b. What is the time between orders?arrow_forwardJust need f. Average weekly demand (52 weeks per year): 71 printers Standard deviation of weekly demand: 19 printers Order lead time: 5 weeks Standard deviation of order lead time: 0 (lead times are constant) Item cost: $170 per printer Cost to place an order: $5 Yearly holding cost per printer: $39 Desired service level during reordering period: 95% (z=1.65)arrow_forward
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