Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13, Problem 28P
Regional Supermarket is open 360 days per year. Daily use of cash register tape averages 10 rolls. Usage appears
a. What is the EOQ?
b. What ROP will provide a lead time service level of 96 percent?
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3. SunValley 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, and carrying costs are 40 cents per roll a year. Lead time is three days. a. What is the EOQ? b. What ROP will provide a service level of 95 percent? c. What would be the ROP for the tape if the lead time has a standard deviation of 1 days?
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, and carrying costs are 40 cents per roll a year. Lead time is three days.a. What is the EOQ?b. What ROP will provide a lead time service level of 96 percent?
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%?
Chapter 13 Solutions
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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- Weekly Average Demand 110 Standard deviation of (weekly) demand 30 Setup cost ($) 1400 Lead time (in weeks) 2 Procurement cost ($) 200 Holding cost /unit/week ($) 3 You are given the demand and inventory related information about a grocery store’s product in the table. The store is open for 46 weeks in a year. What is the reorder point if it wants to achieve a service level of 97%? (Do not round your intermediate calculations. Round your final answers to the nearest whole number.arrow_forwardRegional 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 order-ing tape is $1, and carrying costs are 40 cents per roll a year. Lead time is three days. a. What is the EOQ?b. What ROP will provide a lead time service level of 96 percent?arrow_forwardSam's Pet Hotel operates 52 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $13.00 per bag. The following information is available about these bags: ≻Demand=75 bags/week ≻Order cost=$55.00/order ≻Annual holding cost=25 percent of cost ≻Desired cycle-service level=80 percent ≻Lead time=4 weeks (24 working days) ≻Standard deviation of weekly demand=15 bags ≻Current on-hand inventory is 320 bags, with no open orders or backorders. Part 2 a. Suppose that the weekly demand forecast of 75 bags is incorrect and actual demand averages only 50 bags per week. How much higher will total costs be, owing to the distorted EOQ caused by this forecast error? The costs will be $enter your response here higher owing to the error in EOQ. (Enter your response rounded to two decimal places.) a. What is the EOQ? What would the average time between orders (in weeks)? b. What should R be? c. An inventory withdraw…arrow_forward
- A pharmacist is trying to determine the inventory order and stock levels for a particular drug. The following information is available about the drug. Demand (D) 85 tablets/week Working weeks per year 52 weeks Unit holding cost per year (H) $6 Order cost (S) $44/order Standard deviation of weekly demand (sd) 15 tablets Lead time (L) 2 weeks Desired cycle service level 95% If the pharmacist uses the continuous review (Q) system to control the inventory of the drug, what would be the order quantity and reorder point? If the pharmacist uses the periodic review (P) system to control the inventory of the drug, what would be the review interval and target inventory level? (Hint: Use the EOQ model to derive the review interval P)arrow_forwardGiven Information Service Level - 95% (z value= 1.6649) Order Cost - $125Order Cycle (weeks) - 4, 5, 6, 7, 8Lead Time (weeks) - 2 weeksOperating Time - 52 weeks Standard deviation = 69.3237 Variable Holding Cost - 12.019% Fixed Holding Cost - 1,659,317.307 COMPUTE FOR ECONOMIC ORDER QUANTITY (EOQ) PER ORDER CYCLE. THANK YOUUUUUarrow_forwardA local distributor for a national tire company expects to sell approximately 9,240 tires of a certain size and tread design next year. Annual carrying cost is $18 per tire and ordering cost is $84. The distributor operates 286 days a year. a. What is the EOQ? (Round your answer to a whole number.) 1:00 b. How many times per year does the store reorder? (Round your answer to two decimal points.) Number of Ondors per Year c. What is the length of an order cycle? (Round your answer to two decimal points.) Length of Order Cycle d. What will the total annual carrying and ordering cost be if the EOQ quantity is ordered? (Round your answer to a whole number.) Total Annual Inventory Costarrow_forward
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- Sam's Cat Hotel operates 50 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $12.00 per bag. The following information is available about these bags: > Demand = 95 bags/week > Order cost = $50.00/order > Annual holding cost = 20 percent of cost > Desired cycle-service level = 80 percent > Lead time =5 weeks (30 working days) > Standard deviation of weekly demand = 15 bags > Current on-hand inventory is 320 bags, with no open orders or backorders. a. Suppose that the weekly demand forecast of 95 bags is incorrect and actual demand averages only 75 bags per week. How much higher will total costs be, owing to the distorted EOQ caused by this forecast error? The costs will be $ higher owing to the error in EOQ. (Enter your response rounded to two decimal places.)arrow_forwardGive typed full explanation If a purchase discount is taken: I. there is a saving in purchase cost. II. ordering costs are reduced. III. carrying costs are increased. IV. there is not necessarily a net saving.arrow_forwardDescribe what is ABC classifications in inventory management?arrow_forward
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