EBK OM
6th Edition
ISBN: 9781305888210
Author: Collier
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 10, Problem 8PA
(a)
Summary Introduction
Interpretation:The maximum capacity of store per day needs to be calculated with the help of given data.
Concept Introduction: Capacity measurement is an important concept which helps companies to make long term and short-term decisions related to capacity and thus plan for contingencies.
(a)
Expert Solution
Explanation of Solution
A.
Given Information:
There are 5 regular lines ad 1 express lines.
Average time a customer spends in a regular line = 11 min which means that one regular line can handle 5.45 customers per day.
Average time a customer spends in an express line = 4 min which means that one express line can handle 15 customers per day.
Shift duration = 12 hours per day
Thus,
The capacity of 5 regular lines =
The capacity of 1 express lines =
Therefore, the maximum capacity of store = (327 + 180) = 507 customers per day.
B.
Summary Introduction
Interpretation:The maximum capacity of store per day needs to be calculated with the help of given data.
Concept Introduction: Capacity measurement is an important concept which helps companies to make long term and short-term decisions related to capacity and thus plan for contingencies.
B.
Expert Solution
Explanation of Solution
Given Information:
There are 5 regular lines ad 1 express lines.
Average time a customer spends in a regular line = 11 min which means that one regular line can handle 5.45 customers per day.
Average time a customer spends in an express line = 4 min which means that one express line can handle 15 customers per day.
Shift duration = 12 hours per day
The store’s capacity by day of the week is as follows:
| Period | Monday | ||
| Hours | No. of lines open | Capacity (customers per day) | |
| 9-12 noon | 3 | 1 | |
| 12-4 PM | 4 | 2 | |
| 4-6 PM | 2 | 3 | |
| 6-9 PM | 3 | 4 | |
| Total Capacity of Regular Line (Customers per day) | 158.05 | ||
Since the express line is always open, and the capacity is 180 customers per day.
Therefore, the maximum capacity on Monday is 338 customers per day.
Also, the maximum capacity on Tuesday, Wednesday and Thursday will be 338 customers per day as same number of regular lines are open as on Monday.
| Period | Friday | ||
| Hours | No. of lines open | Capacity (customers per day) | |
| 9-12 noon | 3 | 3 | |
| 12-4 PM | 4 | 3 | |
| 4-6 PM | 2 | 5 | |
| 6-9 PM | 3 | 5 | |
| Total Capacity of Regular Line (Customers per day) | 250.7 | ||
Since the express line is always open, and the capacity is 180 customers per day.
Therefore, the maximum capacity on Friday is 431 customers per day.
| Period | Saturday | ||
| Hours | No. of lines open | Capacity (customers per day) | |
| 9-12 noon | 3 | 5 | |
| 12-4 PM | 4 | 5 | |
| 4-6 PM | 2 | 3 | |
| 6-9 PM | 3 | 3 | |
| Total Capacity of Regular Line (Customers per day) | 272.5 | ||
Since the express line is always open, and the capacity is 180 customers per day.
Therefore, the maximum capacity on Saturday is 452.5 customers per day.
| Period | Sunday | ||
| Hours | No. of lines open | Capacity (customers per day) | |
| 9-12 noon | 3 | 2 | |
| 12-4 PM | 4 | 4 | |
| 4-6 PM | 2 | 2 | |
| 6-9 PM | 3 | 1 | |
| Total Capacity of Regular Line (Customers per day) | 158.05 | ||
Since the express line is always open, and the capacity is 180 customers per day.
Therefore, the maximum capacity on Sunday is 338.5 customers per day.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
. The School of Dentistry at Penn provides general dental care to residents of Philadelphiaon a walk-in basis. Upon arrival, customers first provide health-relevant informationsuch as personal health records and insurance provider to a receptionist who entersthe information into the computer system for the dentist to see. A dental assistant thentakes an X-ray of the patient. A dentist then performs the checkup and discusses anyissues with the patient. Depending on the day, patients might have to wait at any of theseresources. This concludes the process. Draw a process flow diagram of this process.
Owners of a local restaurant are concerned about their ability to provide quality service as they continue to grow and attract more customers. They have collected data from Friday and Saturday nights, their busiest times of the week. During these time periods about 75 customers arrive per hour for service. Given number of tables and chairs, and the typical time it takes to serve a customer, they the owners estimate they can serve on average about 100 customers per hour.
Owners of the restaurant anticipates that, in one year their demand will double as long as they can provide good service to their customers.
How much will they have to increase their service capacity to in order to stay out of the critical zone? (Roundup your answer to the next whole number.)
The table below shows the time stamps of 10 customers who visited a local bank branch from 9:00 a.m. to 9:45 a.m. What is the flow
time of customers?
Customer
1
2
3
4
5
6
7
8
9
10
Time in
9:2
9:5
9:6
9:8
9:8
9:10
9:12
9:15
9:18
9:19
Time out
9:7
9:10
9:17
9:23
9:36
9:21
9:41
9:41
9:28
9:42
Instruction: Round your answer to 1 decimal place.
Flow time of customers
3.5 minutes
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
- Compare and contrast the features in planning of Intensive Care Unit (ICU), Neonatal ICU (NICU), and Coronary Care Unit (CCU) services of the district hospitalarrow_forwardThe Holt Million Corporation’s plant manufactures two different products: X and Y. The plant has three different machines: A, B, and C. Each performs different tasks and can work on only one unit of material at a time. Details for each product are shown in the table below: Product X Y Demand Per Week 200 units 100 units Selling Price $150 $160 Machine Operation Required A, B, C B, B, C Operation Times in Minutes 20, 15, 15 15, 15, 15 Raw Materials Needed RM-1, RM-2 RM-2, RM-3 Raw Materials Costs RM-1 = $40/unit, RM-2 or RM-3 = $20/unit Each product uses raw materials with costs as shown in the above table where the processing times and the machine required for each operation are also shown. Each machine is available 4,800 minutes per week. There are no system foul-ups. Demand is deterministic (i. e., no uncertainty). Operating expenses, including labor (but excluding raw materials) total $12,000 per week. Assuming…arrow_forwardThe company has the following information about its two service departments and two production departments, Cutting and Assembly: Departments SquareFeet Number ofEmployees Maintenance Department 500 20 Cafeteria Department 1,400 10 Cutting Department 1,500 60 Assembly Department 7,100 20 What is the percentage (proportional) usage of the Maintenance Department by the Cutting Department?arrow_forward
- The Holt Million Corporation’s plant manufactures two different products: X and Y. The plant has three different machines: A, B, and C. Each performs different tasks and can work on only one unit of material at a time. Details for each product are shown in the table below: Product X Y Demand Per Week 200 units 100 units Selling Price $150 $160 Machine Operation Required A, B, C B, B, C Operation Times in Minutes 20, 15, 15 15, 15, 15 Raw Materials Needed RM-1, RM-2 RM-2, RM-3 Raw Materials Costs RM-1 = $40/unit, RM-2 or RM-3 = $20/unit Each product uses raw materials with costs as shown in the above table where the processing times and the machine required for each operation are also shown. Each machine is available 4,800 minutes per week. There are no system foul-ups. Demand is deterministic (i. e., no uncertainty). Operating expenses, including labor (but excluding raw materials) total $12,000 per week. Assuming…arrow_forwardOwners of a local restaurant are concerned about their ability to provide quality service as they continue to grow and attract more customers. They have collected data from Friday and Saturday nights, their busiest times of the week. During these time periods about 75 customers arrive per hour for service. Given the number of tables and chairs, and the typical time it takes to serve a customer, the owners estimate they can serve on average about 100 customers per hour. During these nights, are they in the zone of service, the critical zone, or the zone of nonservice?arrow_forwardHow does seasonal variability in demand affect the l ow and waiting time through a process? How might a company respond to reduce the effect of this variability?arrow_forward
- A company receives parts from suppliers to be used in its manufacturing departments. The quality control department must perform two operation when shipments are received:i) Operation A-draw a random sample, package, and deliver to testing, andii) Operation B-test the materials and issue a disposition reportThere are currently six shipments waiting to be processed. The time estimates for processing these six shipments through quality control are:Shipment Operation A (hours) Operation B (hours)1 1.5 1.02 1.1 2.73 1.2 1.44 0.7…arrow_forwardTemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…arrow_forwardTemaTire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of twocustomers per hour. 5a)Assuming Poisson arrivals and exponential service times, compute the following for eachmechanic:(i).Average number of customers waiting(ii).Average number of customers in the system(iii).The average time spent in the queue(iv).The average time spent in the system(v).The probability that no queues would build up(vi).The probability that exactly two customers are waiting at any given time.(vii).The probability that up to two customers are waiting at any…arrow_forward
- Tema Tire Services (TTS) decided to hire a new mechanic to handle all tire changes for customers ordering a new set of tires. Two mechanics have been shortlisted for the job. One mechanic has limited experience, can be hired for GH¢14 per hour, and can service an average of three customers per hour. The other mechanic has several years of experience, can service an average of four customers per hour, but must be paid GH¢20 per hour. Historical data shows that customers arrive at the TTS garage at the rate of two customers per hour. b) If the company assigns a customer waiting cost of GH¢30 per hour, which mechanic provides the lower operating total cost (TC)? c) With the aid of a sketch, show the economic relationship between service cost and waiting costs, and justify whether or not it is necessary for TTS to keep investing in better and/or additional mechanics until waiting time reduces to zearrow_forwardA call center has been serving 900 customers per day, with a 10% capacity cushion. There have been complaints about the length of time customers have to wait before their call is answered. If the manager of the call center wants to double the capacity cushion, how much extra capacity is needed?arrow_forward1. Calculate the average customer arrival rate and service rate per hour. 2. Calculate the probability of zero patients in the system (P0), probability of one patient (P1), and probability of two or more patients simultaneously arriving during the night shift. 3. Using a criterion that if the probability is greater than 1 percent, a backup OR team should be employed, make a recommendation to hospital administration. I'm not sure how to find the answers to the empty boxes.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,
Process selection and facility layout; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=wjxS79880MM;License: Standard YouTube License, CC-BY