Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter C, Problem 3P
Summary Introduction
Interpretation: The economic production lot size (ELS) should be calculated.
Concept Introduction: Economic production of a lot is the quantity produced at lowest stock value. It is the minimum of total cost that requires for output.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Sam’s Cat Hotel operates 52 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $11.70 per bag. The following information is available about these bags.Demand = 90 bags/weekOrder cost = $54/orderAnnual holding cost = 27 percent of costDesired cycle@service level = 80 percentLead time = 3 weeks 118 working days2Standard deviation of weekly demand = 15 bagsCurrent on-hand inventory is 320 bags, with no open orders or backorders.a. What is the EOQ? What would be the average time between orders (in weeks)?b. What should R be?c. An inventory withdrawal of 10 bags was just made. Is it time to reorder?d. The store currently uses a lot size of 500 bags (i.e., Q = 500). What is the annual holding cost of this policy? Annual ordering cost? Without calculating the EOQ, how can you conclude from these two calculations that the current lot size is too large?e. What would be the annual cost saved by shifting from the 500-bag lot size to the…
Sam’s Cat Hotel operates 52 weeks per year, 7 days per week,and uses a continuous review inventory system. It purchaseskitty litter for $10.75 per bag. The following information isavailable about these bags.Demand = 95 bags>weekOrder cost = $58>orderAnnual holding cost = 25 percent of costDesired cycle@service level = 90 percentLead time = 4 weeks 128 working days2Standard deviation of weekly demand = 16 bagsCurrent on-hand inventory is 315 bags, with no open ordersor backorders.a. What is the EOQ? What would be the average time betweenorders (in weeks)?b. What should R be?c. An inventory withdrawal of 10 bags was just made. Is ittime to reorder?d. The store currently uses a lot size of 490 bags (i.e.,Q = 490). What is the annual holding cost of this policy?Annual ordering cost? Without calculating the EOQ, howcan you conclude from these two calculations that thecurrent lot size is too large?e. What would be the annual cost saved by shifting from the490-bag lot size to the EOQ?
Assume that Palmer Executive Pens uses 1,440,000 gallons of ink each year. Further, assume that Palmer can order the ink at a cost of $2 per gallon plus fixed ordering costs of $125 per order. The firm’s carrying cost is 20 percent of the inventory value, at cost.
How much is the holding cost? *
How many number of orders are there in a year? *
Chapter C Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Knowledge Booster
Learn more about
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
- The chapter presented various approaches for the control of inventory investment. Discuss three additional approaches not included that might involve supply chain managers.arrow_forwardStaples buys printer cartridges for $20. The demand for the cartridges is 300 per month. Staples incurs a fixed cost for managing the cartridges of $100. Their annual holding cost is 20%. Calculate Inventory turns per year Number of orders Staples makes per year.arrow_forwardSam’s Cat Hotel operates 52 weeks per year, 7 days per week,and uses a continuous review inventory system. It purchaseskitty litter for $10.75 per bag. The following information isavailable about these bags.Demand = 95 bags>weekOrder cost = $58>orderAnnual holding cost = 25 percent of costDesired cycle@service level = 90 percentLead time = 4 weeks 128 working days2Standard deviation of weekly demand = 16 bagsCurrent on-hand inventory is 315 bags, with no open ordersor backorders. a. Suppose that the weekly demand forecast of 95 bags isincorrect and actual demand averages only 65 bags perweek. How much higher will total costs be, owing to thedistorted EOQ caused by this forecast error?b. Suppose that actual demand is 65 bags but that orderingcosts are cut to only $10 by using the Internet to automateorder placing. However, the buyer does not tell anyone,and the EOQ is not adjusted to reflect this reduction in S.How much higher will total costs be, compared to whatthey could be if…arrow_forward
- My Kitchen Delights (MKD), a regional producer ofgourmet jams and jellies, uses approximately 24,000 glass jarseach month during its production. Because of space limitations,MKD orders 5000 jars at a time. Monthly holding cost is $0.08 perjar, and the ordering cost is $60 per order. Th e company operates20 days per month.(a) What penalty cost is the company incurring by its presentreplenishment policy?(b) MKD would prefer to order eight times each month butneeds to justify any change in order size. How muchwould ordering cost need to be reduced to justify a lot sizeof 3000 jars?(c) If MKD can reduce its ordering cost to $30, what is theoptimal replenishment order quantity?arrow_forwardA local nursery, Greens, uses 1560 bags of plant foodannually. Greens works 52 weeks per year. It costs $10 to place anorder for plant food. Th e annual holding cost rate is $5 per bag.Lead time is one week.(a) Calculate the economic order quantity.(b) Calculate the total annual costs.(c) Determine the reorder pointarrow_forwardAntique manufactures old-fashioned telephones for use in movie scenes (and other displays). Antique's annual demand for rotary telephones is 33,000 units per year, so it needs just as many receptors to assemble the phones. Receptors are ordered from a supplier, and shipping and handling costs are $15 per order (regardless of how many units are on order). The holding costs are $7/unit/year. If the current company policy calls for orders of 3,000 receptors, what are the total annual inventory costs for the receptors? round your final answer to the nearest whole dollar.arrow_forward
- Pet Empire operates 52 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $11.70 per bag. The following information is available about these bags. Demand is 90 bags per week, order cost is $54 per order, annual holding cost is 27% of the cost, service level is 80%, lead time is 3 weeks (18 working days), and standard deviation of weekly demand is 15 bags. Current on hand inventory is 320 bags with no open orders or back orders. Require to calculate Economic Order Quantity (EOQ). What would be the average time between orders (in weeks)? Calculate reorder point (R). The store currently uses a lot size of 500 bags (i.e., Q = 500). Calculate the annual holding cost of this policy and also annual ordering cost. Without calculating the EOQ, how can you conclude from these two calculation that the current lot size is too large? What would be the annual cost saved by shifting from the 500-bag lot size to the EOQ? Consider again the…arrow_forwardSam'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_forwardSuds’s Bottling Company does bottling, labeling, and distri-bution work for several local microbreweries. The demandrate for Wortman’s beer is 600 cases (24 bottles each) perweek. Suds’s bottling production rate is 2,400 cases per week,and the setup cost is $800. The value of inventory is $12.50per case, and the annual holding cost is 30 percent of theinventory value. Suds’s facilities operate 52 weeks each year.What is the economic production lot size?arrow_forward
- A small local pharmacy, Tacky Pharm sells self-test kits for diabetic patients. These kits cost Tacky $15 each. Customers want to buy the kits at a rate of 240 per week. The pharmacy operates 52 weeks per year. Tacky Pharm estimates ordering cost at $50. Annual holding costs are 20 percent of the unit cost. Lead time is 2 weeks. Using the information given Calculate the economic order quantity. Calculate the total annual costs using the EOQ. Determine the reorder point.arrow_forwardCA sells 600 bottles of vitamins per week at $ 100 per bottle. CA's supplier charges CA $ 30 per order and $ 50 per bottle. CA's annual holding cost percentage is 40 % of unit cost. CA operates 50 weeks in a year. What is CA's total annual ordering and holding cost if CA orders 500 bottles at a time ? Show all formulas used, calculations and results.arrow_forwardDescribe what is safety stock and what it provides safety against in inventory management ?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY