EBK PRINCIPLES OF OPERATIONS MANAGEMENT
10th Edition
ISBN: 8220102744059
Author: HEIZER
Publisher: PEARSON
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Chapter 4, Problem 13P
At you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years:
The director of medical services predicted 6 years ago that demand in year 1 would be 41 surgeries.
a) Use exponential smoothing, first with a smoothing constant of .6 and then with one of .9, to develop forecasts for years 2 through 6.
b) Use a 3-year moving average to forecast demand in years 4, 5, and 6.
c) Use the trend-projection method to forecast demand in years 1 through 6.
d) With MAD as the criterion, which of the four
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Dyson, a high-tech home appliance maker, has cut ties with Malaysian supplier ATA IMS Bhd following an audit of the company's labour practices and allegations by a whistleblower. ATA is already under US investigation over forced labour allegations. Dyson has terminated its contracts and is in talks with its customer over the audit findings. ATA, which produces parts for Dyson's vacuum cleaners and air purifiers, tumbled 30% to its lowest since April 2020. The termination is a significant blow for Malaysia, a major electronics manufacturing hub, which has faced scrutiny this year over claims of abusive working and living conditions. Dyson terminated the relationship with six months' contractual notice, hoping it would give ATA the impetus to improve and enable an orderly withdrawal in the interests of the workers they employ. Former ATA worker Dhan Kumar Limbu was beaten by police in Malaysia after sharing information about conditions at the factory with activists. ATA denied all…
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Part 1
Oakwood Hospital is considering using ABC analysis to classify laboratory SKUs into three categories: those that will be delivered daily from their supplier (Class A items), those that will be controlled using a continuous review system (B items), and those that will be held in a two bin system (C items).
The following table shows the annual dollar usage for a sample of eight SKUs. Fill in the blanks for annual dollar usage below. (Enter your responses rounded to the nearest whole number.)
Part 2
Rank the SKUs in descending order on the basis of their annual dollar usage and fill in the table with the ranked SKU's percentage of dollar usage. (Enter your responses rounded to two decimal places.)
Sam's Pet Hotel operates 51 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 70 bags/week
> Order cost $58.00/order
> Annual holding cost 30 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.
a. Suppose that the weekly demand forecast of 70 bags is incorrect and actual demand averages only 45 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.)
Chapter 4 Solutions
EBK PRINCIPLES OF OPERATIONS MANAGEMENT
Ch. 4 - Ethical Dilemma We live in a society obsessed with...Ch. 4 - What is a qualitative forecasting model, and when...Ch. 4 - Identify and briefly describe the two general...Ch. 4 - Identify the three forecasting time horizons....Ch. 4 - Briefly describe the steps that are used to...Ch. 4 - A skeptical manager asks what medium-range...Ch. 4 - Explain why such forecasting devices as moving...Ch. 4 - What is the basic difference between a weighted...Ch. 4 - What three methods are used to determine the...Ch. 4 - Research and briefly describe the Delphi...
Ch. 4 - What is the primary difference between a...Ch. 4 - Define time series.Ch. 4 - What effect does the value of the smoothing...Ch. 4 - Explain the value of seasonal indices in...Ch. 4 - Prob. 14DQCh. 4 - In your own words, explain adaptive forecasting.Ch. 4 - Prob. 16DQCh. 4 - Explain, in your own words, the meaning of the...Ch. 4 - Prob. 18DQCh. 4 - Give examples of industries that are affected by...Ch. 4 - Prob. 20DQCh. 4 - Prob. 21DQCh. 4 - CEO John Goodale, at Southern Illinois Power and...Ch. 4 - The following gives the number of pints of type B...Ch. 4 - a) Plot the above data on a graph. Do you observe...Ch. 4 - Refer to Problem 4.2. Develop a forecast for years...Ch. 4 - A check-processing center uses exponential...Ch. 4 - The Carbondale Hospital is considering the...Ch. 4 - The monthly sales for Yazici Batteries, Inc., were...Ch. 4 - The actual demand for the patients at Omaha...Ch. 4 - Daily high temperatures in St. Louis for the last...Ch. 4 - Lenovo uses the ZX-81 chip in some of its laptop...Ch. 4 - Data collected on the yearly registrations for a...Ch. 4 - Use exponential smoothing with a smoothing...Ch. 4 - Prob. 12PCh. 4 - At you can see in the following table, demand for...Ch. 4 - Prob. 14PCh. 4 - Refer to Solved Problem 4.1 on page 144. a) Use a...Ch. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Income at the architectural firm Spraggins and...Ch. 4 - Resolve Problem 4.19 with = .1 and =.8. Using...Ch. 4 - Prob. 21PCh. 4 - Refer to Problem 4.21. Complete the trend-adjusted...Ch. 4 - Prob. 23PCh. 4 - The following gives the number of accidents that...Ch. 4 - In the past, Peter Kelles tire dealership in Baton...Ch. 4 - George Kyparisis owns a company that manufactures...Ch. 4 - Attendance at Orlandos newest Disneylike...Ch. 4 - Prob. 28PCh. 4 - The number of disk drives (in millions) made at a...Ch. 4 - Prob. 30PCh. 4 - Emergency calls to the 911 system of Durham, North...Ch. 4 - Using the 911 call data in Problem 4.31, forecast...Ch. 4 - Storrs Cycles has just started selling the new...Ch. 4 - Boulanger Savings and Loan is proud of its long...Ch. 4 - Mark Gershon, owner of a musical instrument...Ch. 4 - Prob. 44PCh. 4 - Cafe Michigans manager, Gary Stark, suspects that...Ch. 4 - Prob. 46PCh. 4 - The number of auto accidents in Athens, Ohio, is...Ch. 4 - Rhonda Clark, a Slippery Rock, Pennsylvania, real...Ch. 4 - Accountants at the Tucson firm, Larry Youdelman,...Ch. 4 - Prob. 50PCh. 4 - Using the data in Problem 4.30, apply linear...Ch. 4 - Bus and subway ridership for the summer months in...Ch. 4 - Prob. 53PCh. 4 - Dave Fletcher, the general manager of North...Ch. 4 - Sales of tablet computers at Ted Glickmans...Ch. 4 - The following are monthly actual and forecast...Ch. 4 - Develop a forecasting model, justifying its...Ch. 4 - Prob. 2CSCh. 4 - Discuss the schools options.Ch. 4 - Prob. 1.1VCCh. 4 - Prob. 1.2VCCh. 4 - Using Perezs multiple-regression model, what would...Ch. 4 - Prob. 1.4VCCh. 4 - Describe three different forecasting applications...Ch. 4 - What is the role of the POS system in forecasting...Ch. 4 - Justify the use of the weighting system used for...Ch. 4 - Name several variables besides those mentioned in...Ch. 4 - Prob. 2.5VC
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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
- a. The average aggregate inventory value of the product if Ruby-Star used vendor 1 exclusively is $enter your response here. (Enter your response as a whole number.) b. The aggregate inventory value of the product if Ruby-Star used vendor 2 exclusively is shown below. c. How would your analysis change if average weekly demand increased to 160 units per week? The aggregate inventory values are shown below.arrow_forwarda. What order quantity should be used? lures. (Enter your response rounded to the nearest whole number.) b. What reorder point should be used? (Enter your response rounded to the nearest whole number.) c. What is the total annual cost for this inventory system? (Enter your response rounded to two decimal places)arrow_forwardOakwood Hospital is considering using ABC analysis to classify laboratory SKUS into three categories: those that will be delivered daily from their supplier (Class A items), those that will be controlled using a continuous review system (B items), and those that will be held in a two bin system (C items). The following table shows the annual dollar usage for a sample of eight SKUS. Fill in the blanks for annual dollar usage below. (Enter your responses rounded to the nearest whole number.) SKU Unit Value Demand (units) Annual Dollar Usage 1 $1.10 30,000 $ 2 $0.02 125,000 $ 3 $0.20 65,000 S 4 $0.02 1,100 SA 5 $1.40 150 SA 678 $4.10 900 $ $0.80 350 $ $0.55 80 EA $arrow_forward
- Dyson, a high-tech home appliance maker, has cut ties with Malaysian supplier ATA IMS Bhd following an audit of the company's labour practices and allegations by a whistleblower. ATA is already under US investigation over forced labour allegations. Dyson has terminated its contracts and is in talks with its customer over the audit findings. ATA, which produces parts for Dyson's vacuum cleaners and air purifiers, tumbled 30% to its lowest since April 2020. The termination is a significant blow for Malaysia, a major electronics manufacturing hub, which has faced scrutiny this year over claims of abusive working and living conditions. Dyson terminated the relationship with six months' contractual notice, hoping it would give ATA the impetus to improve and enable an orderly withdrawal in the interests of the workers they employ. Former ATA worker Dhan Kumar Limbu was beaten by police in Malaysia after sharing information about conditions at the factory with activists. ATA denied all…arrow_forwardQuestion 4 (25 Marks) Discuss how developing internal performance measures to track the performance of supplier development, can create efficiency for Pick n Pay.arrow_forwardLeadership and people Earlier this year, Pick n Pay actioned the first priority of the plan: the introduction of a new, simplified and seasoned leadership team with proven track records. The team has already implemented strengthened structures, including establishing regional trading areas with local decision-making, with clear sight of strong long-term succession Each operating region now has a regional buying team and store management team in place to meet specific customer needs particular to that region, while also increasing staff training and productivity for an overall improved store experience. Reset the store estate To create a more sustainable supermarket business, the Group is resetting its store estate to minimise losses by creating a smaller but more profitable Pick n Pay store estate. The plan is to leverage the strength of its multi-format model with strategic conversions to lift store profitability: selected Pick n Pay stores will be converted to Boxer, where customer…arrow_forward
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- One of the best ways to encourage teamwork is to: continually promote from outside of the department recognize employees who focus on their personal performance goals only reward employees who complete their own tasks and also assist with problems outside of their department discuss individual performance issues at staff meetingsarrow_forwardWhat can happen if a leader doesn't encourage teamwork? team members will support each other more the environment can become overly competitive and hostile turnover will descrease team members become more motivatedarrow_forwardunderstand 4 Classwork LSC Drag the name of the figure of speech to its example. 12 February 2025 personification Onomatopoeia Simile Metaphor Hyperbole Onomatopoeia metaphor 1. He tried to help but his legs were wax. Metaphor 2. The man flights like a lion on the soccer field. Simile 3. The books fell on the table with a loud thump. Onomatopoeia 4. Rita heard the last piece of pie calling her name. Personification 5. The rustling leaves kept me away. Personification 6. Kisses are the flowers of affection. 7. He's running faster than the windarrow_forward
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