OPERATIONS MANAGEMENT CUSTOM ACCESS
11th Edition
ISBN: 9780135622438
Author: KRAJEWSKI
Publisher: PEARSON EDUCATION (COLLEGE)
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 4P
Food Goblin Supermarkets use both cashiers and baggers to serve customers at check out. During the first 6 hours of each workday (Monday-Friday), 4 cashiers and 2 baggers serve approximately 20 customers per hour. A cashier and a bagger who require approximately 5 minutes at checkout and 5 minutes at bagging serve each customer.
- Calculate the utilization of both cashiers and baggers.
- Assume that both baggers and cashiers are cross trained to perform both activities so that they can serve customers independently. Customers are now both checked and their groceries bagged by one individual. Further, assume that it takes 12 minutes for one individual to both cash out and bag each customer’s groceries. Calculate the utilization of this new group of 6 cross-trained employees.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
RideShare offers short-term rentals of vehicles that are kept in small lots in urbanneighborhoods with plenty of potential customers. With one lot, it has eight cars. Theinterarrival time of potential demand for this lot from its base of customers is 40 minutes.The average rental period is five hours. If a customer checks availability of vehicles in thislot online and finds that they are all rented for the desired time, the customer skips rentingand finds alternative arrangements. However, because customers pay a monthly fee tosubscribe to this service, RideShare does not want customers to be disappointed too often.a. What is the offered load?b. What is the implied utilization?c. What is the capacity of the process (rentals per hour)?d. What is the probability that all eight cars are rented at the same time?e. How many customers are served every hour?f. What is the utilization of the cars?g. How many cars should it have in this lot to ensure that it serves at least 90 percent ofdemand?
Cakes baked by the Freshfood Bakery are transported fromthe ovens to be packaged by one of three wrappers. Eachwrapper can wrap an average of 120 cakes per hour (Poissondistributed). The cakes are brought to the wrappers at therate of 300 per hour (Poisson distributed). If a cake sitslonger than 5 minutes before being wrapped, it will not befresh enough to meet the bakery’s quality control standards.Does the bakery need to hire another wrapper?
Which of the following is an important difference between Service Operations and Manufacturing Operations?
Group of answer choices
Services generally don’t have capacity problems
Services typically can’t keep inventory
Services are very capital intensive
Services have longer throughput times
Chapter 4 Solutions
OPERATIONS MANAGEMENT CUSTOM ACCESS
Ch. 4 - Prob. 1DQCh. 4 - Prob. 2DQCh. 4 - The Dahlia Medical Center has 30 labor rooms, 15...Ch. 4 - A process currently services an average of 50...Ch. 4 - An airline company must plan its fleet capacity...Ch. 4 - Food Goblin Supermarkets use both cashiers and...Ch. 4 - Returning to Problem 4, under both assumption of...Ch. 4 - Purple Swift manufactures birdhouses in lots of...Ch. 4 - Macon Controls produces three different types of...Ch. 4 - Up, Up, and Away is a producer of kites and wind...
Ch. 4 - Tuff-Rider, Inc. manufactures touring bikes and...Ch. 4 - Arabelle is considering expanding the floor area...Ch. 4 - The Astro World amusement park has the opportunity...Ch. 4 - Kim Epson operates a full-service car wash, which...Ch. 4 - MKM International is seeking to purchase a new CNC...Ch. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Dawson Electronics is a manufacturer of high-tech...Ch. 4 - A manager is trying to decide whether to buy one...Ch. 4 - Acme Steel Fabricators experienced booming...Ch. 4 - Referring to Problem 7, the operations manager at...Ch. 4 - Darren Mack owns the Gas n’ Go convenience store...Ch. 4 - Prob. 25PCh. 4 - Prob. 1VCCh. 4 - Prob. 2VCCh. 4 - How does Southwest Airlines know they are...Ch. 4 - Prob. 4VCCh. 4 - Prob. 1CCh. 4 - Prob. 2CCh. 4 - Prob. 3C
Additional Business Textbook Solutions
Find more solutions based on key concepts
2. In what circumstances might a market-pull approach or a technology-push approach to new-product design be th...
OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
What is precedent, and how does it affect common law?
Business in Action (8th Edition)
Feeding America Each year, the Feeding America network helps provide food to more than 46 million people facing...
Operations and Supply Chain Management 9th edition
What are the three major business functions, and how are they related to one another? Give specific examples.
Operations Management, Binder Ready Version: An Integrated Approach
2. Identify four people who have contributed to the theory and techniques of operations management.
Operations Management
What is precedent, and how does it affect common law?
Business in Action
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 sanitary landfill charges companies $200 per load and individuals $50 per load. On average, 90 companies tip their trucks each day at the landfill with a standard deviation of 30. There is time only for 110 deliveries in any combination of companies and individuals throughout the course of an eight-hour day. Company dump trucks enter through Gate A and individuals enter through Gate B. Individual demand is plentiful – often there are individuals turned away due to lack of capacity. It costs the landfill $30 to process a company dump truck and $15 to process an individual load. What is the expected profit for one day if the landfill allocates the optimal quantity of capacity to company trucks and individuals fill up the remainder of the сараcity? -arrow_forwardThe utilization of baggers is Food Goblin Supermarkets use both cashiers and baggers to serve customers at check out. During the first 7 hours of each workday (Monday-Friday), 6 cashiers and 2 baggers serve approximately 25 customers per hour. A cashier and a bagger who require approximately 6 minutes at checkout and 4 minutes at bagging serve each customer. a. The utilization of cashiers is 41.7%. (Enter your response rounded to one decimal place.) %. (Enter your response rounded to one decimal place.) v an example Part 2 of 3 Get more help. O Points: 0 of 3 Clear all Check answer Oarrow_forwardA supermarket is trying to decide how many cashregisters to keep open. Suppose an average of 18 customersarrive each hour, and the average checkout time for acustomer is 4 minutes. Interarrival times and service timesare exponential, and the system may be modeled as anM/M/s/GD/∞/∞ queuing system. It costs $20 per hour tooperate a cash register, and a cost of 25¢ is assessed foreach minute the customer spends in the cash register area.How many registers should the store open?arrow_forward
- At the Smalltown post office, patrons wait in a singleline for the first open window. An average of 100 patronsper hour enter the post office, and each window can servean average of 45 patrons per hour. The post office estimatesa cost of 10¢ for each minute a patron waits in line andbelieves that it costs $20 per hour to keep a window open.Interarrival times and service times are exponential.a To minimize the total expected hourly cost, howmany windows should be open?b If the post office’s goal is to ensure that at most 5%of all patrons will spend more than 5 minutes in line,how many windows should be open?arrow_forwardWe run a fresh produce stand at farmer’s market where we sell avocados and artichokes. Each morning, a supplier drops off bags of these products. We can buy up to 200 bags of avocados and up to 175 bags of artichokes each morning. We resell the bags to customers throughout the day. The contribution margin of avocados is $15/bag; the contribution margin of artichokes is $20/bag. We sell at least twice as many bags of avocados as we do artichokes. We have found that our normal daily demand is between 140 and 350 total bags what are the constaintsarrow_forwardOnly typed explanation otherwise leave it Answer only C partarrow_forward
- Given the following data at the drive-through of a bank, what is the interarrival time between the first and second customers? TITIT Customer Arrival Time Service Time (minutes) 8:06 8:10 10 8:15 7 4 8:25 2. 10 minutes O S minutes O 4 minutes O 20 minutesarrow_forwardThe company offers the following packages to their customers: Package 1: Includes only car wash (service A). Package 2: Includes car wash and waxing (services A and B). Package 3: Car wash, waxing, and wheel cleaning (services A, B, and C). Package 4: All four services (A, B, C, and D).Customers of CC Car Wash visit the station at a constant rate (you can ignore any effects ofvariability) of 40 customers per day. Of these customers, 40 percent buy Package 1, 15 percentbuy Package 2, 15 percent for Package 3, and 30 percent for Package 4. The mix does not changeover the course of the day. The store operates 12 hours a day.a. What is the implied utilization of the employee doing the wheel cleaning service?b. Which resource has the highest implied utilization?For the next summer, CC Car Wash anticipates an increase in the demand to 80 customers perday. Together with this demand increase, there is expected to be a change in the mix of packagesdemanded: 30 percent of the customers ask…arrow_forwardThe feature of a service that explains services cannot be stored or warehoused is: a. Perishability b. Intangibility c. Heterogeneity d. Inseparabilityarrow_forward
- A hotel hosts banquets for conferences in a large ballroom with tables of ten. Servers must get the meals from the kitchen, bring them out to the tables, and then place the meals on the tables. It takes four minutes to get the meals, bring them out to the tables, and then 12 seconds to serve each guest. Use the Service Capacity Excel template in MindTap to answer the following questions. a. If 20 servers are available, how many tables can be served in 20 minutes? Do not round intermediate calculations. Round your answer to two decimal places. tables b. The hotel wants to be able to serve 110 tables in 20 minutes. How many servers are needed? Do not round intermediate calculations. Round your answer to the nearest whole number. serversarrow_forwardSingle server system has customer arrival rate of 60 customers per minute and a service rate of 75 customers per minute. Customer arrival pattern is finite and they won't leave till they are served. The Arrival and Service patterns, both are exponential distribution. Based on the above information calculate a. Server utilization% b. Average numbers of customers in line C. Average time per customer in Line d. Average numbers of customers in system e. Average time per customer in Systemarrow_forwardRuby-Star Incorporated is considering two different vendors for one of its top-selling products which has an average weekly demand of 50 units and is valued at $75 per unit. Inbound shipments from vendor 1 will average 350 units with an average lead time (including ordering delays and transit time) of 2 weeks. Inbound shipments from vendor 2 will average 500 units with an average lead time of 1 week. Ruby-Star operates 52 weeks per year; it carries a 2-week supply of inventory as safety stock and no anticipation inventory.a. What would be the average aggregate inventory value of this product if Ruby-Star used vendor 1 exclusively?b. What would be the average aggregate inventory value of this product if Ruby-Star used vendor 2 exclusively?c. How would your analysis change if average weekly demand increased to 100 units per week?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Inventory Management | Concepts, Examples and Solved Problems; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=2n9NLZTIlz8;License: Standard YouTube License, CC-BY