Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13, Problem 13P
A mail-order house uses 18,000 boxes a year. Carrying costs are 60 cents per box a year, and ordering costs are $96. The following price
a. The optimal order quantity
b. The number of orders per year·
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Students have asked these similar questions
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?
Question 1
For supply item ABC, Andrews Company has been ordering 400 units per week. A new
purchasing agent has been hired by the company who wants to start using the economic-order-
quantity method and its supporting decision elements. She has gathered the following
information:
Annual demand in units
Lead time, in days
Ordering costs
Insurance and handling costs
Purchase price per unit
Return on cash investment
20,800
5
$22
$7
$15
15%
Required
The company Marombeiro is a commercial representative of a food supplement widely consumed in gyms. The average daily demand for the product is 1,500 units and a standard deviation of 300 units. Average shipping time is 5 days. Of course, if the order is placed at the end of the week, it may take a little longer to receive the shipment, so the standard deviation of the delivery time is 2 days. The unit has a value of R$ 50.00 per unit in stock, an order cost of R$ 50.00 and an annual maintenance fee of 20%. Suppose the company Marombeiro wants to have a Service Level of 97%. What would be the safety stock that would guarantee this level of service?
( )3,460 units
( )7,930 units
( )5,768 units
( )4,826 units
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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- The company Marombeiro is a commercial representative of a food supplement widely consumed in gyms. The average daily demand for the product is 1,500 units and a standard deviation of 300 units. Average shipping time is 5 days. Of course, if the order is placed at the end of the week, it may take a little longer to receive the shipment, so the standard deviation of the delivery time is 2 days. The unit has a value of R$ 50.00 per unit in stock, an order cost of R$ 50.00 and an annual maintenance fee of 20%. Assume the service level is 99.5%. How much safety stock should the company have? ( )7,500 units ( )19,350 units ( )3,074 units ( )7,916 unitsarrow_forwardEnergyzer , 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 PLEASE SHOW WORKarrow_forwardFor a specific farm implement ‘FI’ is to be ordered by a food processing company, following data is available: Monthly Demand= 800 units Purchase cost/unit = $40/unit Ordering costs= $60/ order Holding costs (Ch) = $12/unit/year, fire insurance = 6% of the unit cost, 2% other overheads. Determine optimal order quantity of ‘FI’ items and how frequently the order should be placed?arrow_forward
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