Customers arrive at the lone check-out desk of a certain convenience store at the average rate of 0.23 per minute. If it takes on average four minutes for the store manager to serve each customer, how many customers will on average find themselves waiting in the queue?

Customers arrive at the lone check-out desk of a certain convenience store at the average rate of 0.23 per minute. If it takes on average four minutes for the store manager to serve each customer, how many customers will on average find themselves waiting in the queue?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section12.5: Analytic Steady-state Queueing Models

Problem 9P

See similar textbooks

Related questions

Q: Ma3. What is the most relevant question to ask at a meeting with the ICA or relevant engagement…

A: The business environment is becoming more competitive, and the business needs to compete with each…

Q: A bakery wants to determine how many trays of doughnuts it should prepare each day. Demand is normal…

A: The number of tray should be calculate with following formula:- Number of tray = Demand + z *…

Q: This type of meeting is held on a regularly scheduled basis and usually led by the Project Manager…

A: Some of the basic and universal activities performed by Project managers in any project are:…

Q: A factory makes two different types of product: ordinary and premium. Each product is made using…

A: Let ordinary product be O and premium product be P The objective function is to maximize the total…

Q: In an analyzation of the auto industry in the US using Porter's Five Forces (including the level of…

A: Introduction: Porter five- forces model: A strategic model devised by Michael Porter is most widely…

Q: 1) Which of the following is a trait of task forces? Multiple Choice Low skill diversity High team…

A: Task forces are ad hoc groups assembled to solve a particular opportunity or provide a good or…

Q: Use the simplex method to solve the linear programming problem: Maximize z = 8x1 + 3x2 + x3, subject…

A: Objective Functions and Constraints: Based on the given details, the objective…

Q: An activity on a PERT network has an optimistic time of 2 hours, a most likely time of 4 hours, and…

A: Standard deviation is measurement the amount of variation from average or mean. It is calculated the…

Q: SOM 306: Operations Management 5. A work cell is required to make 250 computerized diagnostic…

A: Formulae used: Required assemblies = 250 units Workable productive hours = 6.5 hr = (6.5 x 60 )…

Q: A project has the following activities, with specified precedents, expected durations (in days), and…

A: A network diagram is a graphical representation of project which helps to identify the project…

Q: A work cell has four stations, and each unit produced at the cell needs to be processed by all of…

A: Given data: The capacity of stations: Station1 =(S1, 1, 8), Station 2 =(S2, 1, 5) Station 3 =(S3,…

Q: Problem 7 At Treasure Wine Estates in Napa, CA the Sales and Marketing Department have developed a…

A: Given data is Linear trend equation: Ft=90+12.5t A linear trend equation can be formed by taking the…

Q: Discussion Issue: 1. Identify the scenario's difficulty. 2. Describe the impact on the finances

A: According to FAS Port Klang, Incoterms 2010, When the goods are placed alongside the buyer's vessel…

Q: The Universal Computer Company uses a newly developed A1 chip in the manufacturer of their tablet…

A: Given data, D Annual Demand 12000 H Holding Cost 20 S Ordering cost 75

Q: Suad Alwan, the purchasing agent for Dubai Airlines, has determined that the second plane took…

A: Find the Calculation methods below: Time taken for n unit (Tn) = T1nbn - Unit numberT1 - Time Taken…

Q: Suppose that an organization is engaged in manufacturing and sales of a seasonal product. Based on a…

A: Beginning Inventory = 0Carrying cost =$7For Level production strategy-Production level = Sales per…

Q: n your opinion, which of the three universal principles of quality management of Juran’s trilogy is…

A: The term "Quality" refers to how good or bad is the resultant output. It defines a state or a…

Q: You will choose a multinational business enterprise/SME company. and check out its annual reports…

A: ANSWER : 1. The company Adidas was found by Adolf dassler and his senior sibling Rudolf Dassler in…

Q: In 2018, Proctor and Gamble reported inventory of $5.017 billion and cost of goods sold of $66.832…

A: Here, the annual holding cost percentage =30% During the year 2018, the Inventory value=5.017…

Q: Do you have any ideas as to how interruptions might increase productivity and decrease downtime on…

A: No matter what kind of facility a manager oversees, they are always thinking of new methods to…

Q: 2) A campaign such as the one run by the Brownste Group addresses an understanding of the produe…

A: Since you have posted multiple questions, we will solve first question for you as per our Authoring…

Q: Now that all the previous changes have occurred (Task D changes to 3 weeks and task G changes to 4…

A: A network diagram related to the project is which shows the set sequence of the task that is done to…

Q: WhatYouNeed is an online retailer with operations in Northern Indiana. Their network includes five…

A: Waste is a major blocker in revenue generation for all the firms be it goods or services. Reducing…

Q: Question 22 Use the information below to select the closest answer to the following questions. If…

A: Given- Publisher's selling price (c) = $0.70Vendor's selling price (p) = $1Salvage value (s) =$0.10…

Q: Subject: Procurement & sourcing Q): Why do government set production quota, explain with example?

A: Ans) Government set production quota due to many reasons. If production quota is set High, it means…

Q: Explain the role of person with control in relation to safe design processes?

A: Safe design is crucial for building projects as it provides a team-based approach to risk…

Q: The company "Best Manufacturers Ltd" is applying a typical Failure Mode and Effect Analysis. For a…

Q: The Company "Best Engineers Ltd has released the figures shown below for the financial years 2018…

A: Formula to be used: Total quality cost = Prevention Cost + Appraisal cost + Internal Failure cost +…

Q: When doing Performance Testing, what common mistakes might be made

A: Performance testing measures how quickly, responsively, and steadily a computer, network, software…

Q: Catamount Inc. employs one worker to load packages on an outgoing truck. The work shift is an 8 hour…

A: Find the Given details below: Given details: Shift 8 Hours per day Trucks 40 per day…

Q: Given the following Product Structure Record, how many 1/2" screws are required to assemble 60…

A: Given, The table of items with their quantity and levels, we can form a product structure like this:

Q: For small samples, R chart is relatively sensitive to changes in process standard deviation. False…

A: The sample range, or the difference between the highest and lowest value in each sample, is shown by…

Q: Is there any way you can imagine that interruptions may increase productivity and decrease downtime…

A: Production interruptions are brief or prolonged delays that are imposed on the workforce or work…

Q: Even though independent gasoline stations have been having a difficult time, Susan Solomon has been…

A: Decision criteria: Maximax: In which first determine the best possible payoff, and selects the…

Q: Given the above information, what is the Critical Path of this project? O E-F-I-J O A-D-G-H-J O…

A: Project management is about planning and organizing the resources of the company. These resources…

Q: There should be a list of the five risk-control approaches, with brief explanations of each.

A: There are five fundamental methods for managing risks: (1) Avoidance; (2) Retention; (3) Spreading;…

Q: Characteristics of break-bulk cargo

A: In transportation and shipping when the goods are handled and loaded in specific bags, pallets,…

Q: The project information of the project Automated Warehouse Order Picking System is presented as…

A: A network diagram related to the project is which shows the set sequence of the task that is done to…

Q: Solve for the optimal Transportation schedule. Find an initial feasible solution using the Intuitive…

A: The transportation model is used to calculate the minimum cost of the route by selecting different…

Q: 41. What is revenue management? A. The use of pricing to increase profits generated from a limited…

A: Supply Chain Management - It is signified as the management of the flow of goods and services. It…

Q: Brown and Brown Electronics manufactures a line of digital audiotape (DAT) players. The bill of…

A: Instructions and formula used: Projected on hand = Planned order receipts + ending inventory…

Q: You work for shipping company ABC and your company is shipping 15 bottles of cylinders and 20 crates…

A: A dangerous products specialist is in charge of marking and packing hazardous commodities in…

Q: The Activity on node diagram in Fig 15.1 was prepared at the beginning of a software update project.…

A: 1. During forward pass in case of more than two preceding activities the early start will be…

Q: Laws that inform procurement activities

A: ANSWER : To give a brief review, procurement is just the act of buying and negotiating materials…

Q: What is the difference between moving average and weighted moving average? Describe it with an…

A: Forecasting is a method which helps to predict the future demand based on the past information.…

Q: The project's final products may be affected by how well scope modifications are managed and…

A: Scope modification occurs in a project due to various reasons but one needs to determine how…

Q: 3. SOLVE USING TWO-PHASE METHOD Minimize x₁ - 3x3 subject to x₁ + 2x₂x3 ≤ 6 x₂ + 3x3 = 3 X1, X2, X3…

A: Linear programming is a mathematical technique that is also used in operations management…

Q: Assume Sandra's forecasted ADR for the night is $1600.99. What would be her estimated total room…

A: Given, Net availability = 450 rooms Stayovers = 170 Reservations = 120 Overstays = 30 Early…

Q: Suppose a state department of education develops a new tool for assessing teacher performance.…

A: ANSWER : 1. First compare parameters that you already know with the parameters obtained from the…

Q: The following information has been computed from a project: Expected total project time = T = 62…

A: Given information Project duration = 62 weeks Project variance = 81 weeks Probability ? For…

Concept explainers

Inventory Management

The supply chain is crucial to a firm's operations as it manages the inflow and outflow of products that are manufactured from the initial stage to the end product. It also considers the raw materials needed at different stages of production and when the work is in progress. Inventory management functions consist of ordering, storing, and procuring the organization's inventory like raw materials, factors, and finished products. It's also used for controlling the number of products for trade and helps manage the organization's inventory and stock. Inventory Management has been defined as having the right inventory, of the right volume, at the right cost.

Question

A. 10.58

B. 0.00024

C. 3.20

D. 0.00351

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 Introduction:

VIEW

Step 2 Answer:

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

A new customer walks into SLC Barber Shop every 60 minutes on average, with a standard deviation of the interarrival times being 60 minutes. At SLC Barber Shop, the average service time is 30 minutes, with a standard deviation of service times being 45 minutes. What is the average number of customers in the barber shop including those that are waiting in line and those receiving service? What is the average number of customers in service?
Consider a bank with two tellers. An average of 2 customers per hour arrive at the bank and wait in a single línea for an idle teller. The average time it takes to serve a customer is triangular (x1=1, y1=0), (x2=4, y2=2/3) Assume that inter-arrival times and services time is exponential. Develop the service (ST) equation? a. Y=2x-22/6B. Y=2x-22/3C. Y=22/3x-2/3D. Y=2x-3/22
Given the following Operating Characteristics from a queuing model with time units specified in hours, answer the five questions: Po = 0.4000 Lq = 0.9000 L = 1.5000 Wq = 0.2000 W = 0.3000 Pw = 0.6000 What is the average time, in minutes, a customer waits in line before being served? What is the average time, in minutes, a customer spends waiting and being served? What is the average number of customers in the system? What is the probability that there are no customers in the system? If the system serves a customer every 4 minutes, what is the service rate?
In a queueing system, customers arrive once every 4 minutes (standard deviation = 7) and services take 3 minutes (standard deviation = 5.5). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average time a customer will spend in the queue (in minutes)? minutes
At a book store, one customer arrives every 6 minutes. The book store has one cashier, and it takes 4 minutes to serve one customer with a standard deviation of 5.9. The arrival process has a standard deviation of 8. (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average number of customers in the queue? customers
Trucks using a single-server loading dock have a mean arrival rate of 14 per day. The loading/unloading rate is 19 per day. What is the probability that the truck dock will be idle? What is the average number of trucks waiting for service? What is the average time a truck waits for the loading or unloading service? What is the probability that a new arrival will have to wait? What is the probability that more than three trucks are waiting for service?
A local fast food restaurant wants to analyze its drive-thru window. At this time, the only information known is the average number of customers in the system (4.00) and the average time a customer spends at the restaurant (1.176 minutes). What is the arrival rate (λ) and the service rate (μ)? Group of answer choices Arrival rate = 4.25 customers/min. Service rate = 3.4 customers/min. Arrival rate = .29 customers/min. Service rate = .24 customers/min. Arrival rate = 3.4 customers/min. Service rate = 4.25 customers/min. Arrival rate = .24 customers/min. Service rate = .29 customers/min. None of the above answers are correct
In a queueing system, customers arrive once every 5 minutes (standard deviation = 7) and services take 3 minutes (standard deviation = 6.8). (Do not round intermediate calculations. Round your answer to three decimal places.) What is the average time a customer will spend in the system (in minutes)? minutes
For the first five hours of the day, the arrival rate at the book store is 35 customers per hour. The book store is capable of serving 30 customers per hour. Assume that the system is empty at the start and that no customer who arrives leaves without being served. At the end of the first five hours, how many patients would you expect to find in line? customers
* 08 HI FL R %S4 LLI %#3 50 For the first two hours of the day, the arrival rate at the donut shop is 10 customers per hour. The donut shop is capable of serving 8 customers per hour. Assume that the system is empty at the start and that no customer who arrives leaves without being served. (Round your answer to 2 decimal places.) What is the average wait time for customers during this time period (in hours)? unoy nces Mc Graw Wellington Paranormal Stars and Pahkitew Island RESTAURANT Restaurant: Scissor Seven My 600-lb Life The Afterparty Pam & Tommy As We See It 8,425 MAR étv A 644 DD F7 F12 F8 F10 F3 F 4 F5 93 %23 5 delet 9 7. 2. } P. 1 B. W N alt 38 command MOSISO command
In an M/M/1 queueing system, the arrival rate is 5 customers per hour and the service rate is 7 customers per hour. If the service process is automated (resulting in no variation in service times but the same service rate), what will be the resulting performance measurements? What is the utilization? What is the expected number of customers in the system (L)? What is the expected waiting time (in hours) for the system (W)? What is the expected number of customers in the queue (Lq)? What is the expected waiting time (in hours) in the queue (Wq)?
Joe’s market is a small grocery store with only one checkout counter. Assume that shoppers arrive at the checkout lane at an average rate of 15 customers per hour and that the average order takes 3 minutes to ring up and bag. If Joe does not want the average waiting time in the queue to exceed 5 minutes, what would you tell Joe about his current system? Back up your statement with quantitative information and assumptions.