New Semester Started Get 50% OFF Study Help! --h --m --s Claim Now

Question Answers

Textbooks

Find textbooks, questions and answers

Oops, something went wrong!

Change your search query and then try again

Result Not Found

Books FREE
Study Help
Tutors
AI Study Planner NEW
Sell Books

Search
Sign In
Register

study help
business
hotel operations management

Operations Management 10th Edition Jay Heizer, Barry Render - Solutions

What is computerized short-term scheduling that overcomes the dis- advantage of rule-based systems by providing the user with graphical interactive computing?a) LPTc) CSSe) GICb) FCSd) FCFS
Cyclical scheduling is used to schedule:a) jobs.c) shipments.b) machines.d) employees.
What is JIT?
Bill Penny has a repetitive manufacturing plant pro- ducing trailer hitches in Arlington, Texas. The plant has an aver- age inventory turnover of only 12 times per year. He has therefore determined that he will reduce his component lot sizes. He has developed the following data for one component,
Given the following information about a product, at Phyllis Simon's firm, what is the appropriate setup time? Annual demand = 39,000 units Daily demand Daily production 150 units 1,000 units Desired lot size = 150 units Holding cost per unit per year = $10 Setup labor cost per hour = $40 ...
Rick Wing has a repetitive manufacturing plant produc- ing automobile steering wheels. Use the following data to prepare for a reduced lot size. The firm uses a work year of 305 days. Annual demand for steering wheels Daily demand Daily production (8 hours) Desired lot size (2 hours of production)
Identify the attributes you would expect the Claims Processing Department at MICI to have once the new JIT system is in place.
What will the restructured cell layout for claim processing in Figure 16.10 look like? Draw it.
What assumptions are you making about personnel and equip- ment in the new group technology cell layout?
How will the new JIT oriented system benefit the MICI opera- tion? Explain.
If you are Mr. Folley, looking over the devastation at the Oxford plant, what do you do to keep Caterpillar's worldwide produc- tion running?
Given the inherent risk in JIT and the trauma that the companies have experienced, why has JIT survived?
What do these experiences, and the continuing popularity of JIT, tell you about just-in-time?
What actions or changes in policy do you suggest for Caterpillar?
What do you recommend be done when an error is found in a pack as it is opened for an operation?
How might the procedure for custom surgical packs described here be improved?
When discussing JIT in services, the text notes that suppliers, layout, inventory, and scheduling are all used. Provide an exam- ple of each of these at Arnold Palmer Hospital.
When a doctor proposes a new surgical procedure, how do you recommend the SKU for a new custom pack be entered into the hospital's supply-chain system?
How can a manager evaluate the effectiveness of the mainte-
A testing process at Boeing Aircraft has 400 compo- nents in series. The average reliability of each component is 99.5%. Use Figure
to find the overall reliability of the whole testing process.
What are the expected number of yearly breakdowns for the power generator at Orlando Utilities that has exhibited the following data over the past 20 years? Number of breakdowns Number of years in which breakdown occurred 0 1 2 3 4 5 6 2 2 5 4 5 2 0
Each breakdown of a graphic plotter table at Airbus Industries costs $50. Find the expected daily breakdown cost, given the following data: PX Number of breakdowns 0 1 2 3 4 Daily breakdown probability .1 .2 4 .2 .1
A new aircraft control system is being designed that must be 98% reliable. This system consists of three components in series. If all three of the components are to have the same level of reliability, what level of reliability is required? PX P
Robert Klassan Manufacturing, a medical equipment manufacturer, subjected 100 heart pacemakers to 5,000 hours of testing. Halfway through the testing, 5 pacemakers failed. What was the failure rate in terms of the following:a) Percentage of failures?b) Number of failures per unit-hour?c) Number of
What is the reliability of the following production process? R = 0.95, R2 = 0.90, R3 = 0.98. R Ra
Merrill Kim Sharp has a system composed of three com- ponents in parallel. The components have the following reliabilities: R = 0.90, R2 0.95, R3 = 0.85 What is the reliability of the system? (Hint: See Example 3.)
A medical control system has three components in series with individual reliabilities (R1, R2, R3) as shown: R R2 99 .98 .90 Rs What is the reliability of the system?
a) What is the reliability of the system shown? Rs1 .90 98 .99 Pip 98 .90 Rg2b) How much did reliability improve if the medical control system shown in Problem 17.11 changed to the redundant parallel sys- tem shown here? X ...17.13 Assume that for cardiac bypass surgery, 85% of patients survive the
The fire department has a number of failures with its oxygen masks and is evaluating the possibility of outsourcing preventive maintenance to the manufacturer. Because of the risk associated with a failure, the cost of each failure is esti- mated at $2,000. The current maintenance policy (with
What might be done to help take Frito-Lay to the next level of outstanding maintenance? Consider factors such as sophisticated software.
What are the advantages and disadvantages of giving more responsibility for machine maintenance to the operator?
Discuss the pros and cons of hiring multi-craft maintenance personnel.
What is the formula for the mean time between failures?a) Number of failures + Number of unit-hours of operation timeb) Number of unit-hours of operation time + Number of failuresc) (Number of failures Number of units tested) x 100%d) (Number of units tested + Number of failures) x 100%e) 1+ FR(%)
The process that is intended to find potential failures and make changes or repairs is known as:a) breakdown maintenance.c) preventive maintenance.b) failure maintenance.d) all of the above.
The appropriate maintenance policy is developed by balancing preventive maintenance costs with breakdown maintenance costs. The problem is that:
a) preventive maintenance costs are very difficult to identify.b) full breakdown costs are seldom considered.c) preventive maintenance should be performed, regardless of the cost.d) breakdown maintenance must be performed, regardless of the cost. maintenance partners operators with maintenance
Each linear programming problem that has a feasible region has 12.Where a constraint crosses the vertical or horizontal axis, the an infinite number of solutions. Explain.
How many feasible solutions are there in a linear program? Which ones do we need to examine to find the optimal solution? quantity is fairly obvious. How does one go about finding the quantity coordinates where two constraints cross, not at an axis?
Formulate an LP problem to determine what blend of the four chemicals will allow Golding to minimize the cost of a 50-lb bag of the fertilizer.
Which of the following is not a valid LP constraint formulation?a) 3X+4Y 12b) 2X x 2Y 12 18c) 32Zd) 100 X + Ye) 2.5X+1.5Z = 30.6
Consider the following linear programming problem: Maximize Subject to: 4X + 10Y 3X+4Y 480 4x + 2y = 360 X, YO The feasible corner points are (48,84), (0, 120), (0, 0), and (90,0). What is the maximum possible value for the objective function?a) 1,032b) 1,200c) 360d) 1,600e) 840
A zero shadow price for a resource ordinarily means that:a) the resource is scarce.b) the resource constraint was redundant.c) the resource has not been used up.d) something is wrong with the problem formulation.e) none of the above.
Which is larger, W, or W? Explain.
Discuss the likely outcome of a waiting line system where >A but only by a tiny amount (e.g., 4.1, A = 4).
Customers arrive at Paul Harrold's Styling Shop at a rate of 3 per hour, distributed in a Poisson fashion. Paul can perform haircuts at a rate of 5 per hour, distributed exponentially.a) Find the average number of customers waiting for haircuts.b) Find the average number of customers in the shop.c)
There is only one copying machine in the student lounge of the business school. Students arrive at the rate of = 40 per hour (according to a Poisson distribution). Copying takes an average of 40 seconds, or 90 per hour (according to an expo- nential distribution). Compute the following:a) The
Glen Schmidt owns and manages a chili-dog and soft- drink stand near the Georgeville campus. While Glen can service 30 customers per hour on the average (u), he gets only 20 customers per hour (A). Because Glen could wait on 50% more customers than actually visit his stand, it doesn't make sense to
The pharmacist at Arnold Palmer Hospital, Saad Alwan, receives 12 requests for prescriptions each hour, Poisson distributed. It takes him a mean time of 4 minutes to fill each, fol- lowing a negative exponential distribution. Use the waiting line table, Table
and WL/A, to answer these questions.a) What is the average number of prescriptions in the queue?b) How long will the average prescription spend in the queue?c) Alwan decides to hire a second pharmacist, Ajay Aggerwal, whom he went to school with and who operates at the same speed in filling
Radovilsky's Department Store in Haywood, California, maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait.
The typical subway station in Washington, DC, has six turnstiles, each of which can be controlled by the station manager to be used for either entrance or exit control-but never for both. The manager must decide at different times of the day how many turn- stiles to use for entering passengers and
Yvette Freeman's Car Wash takes a constant time of 4.5 minutes in its automated car wash cycle. Autos arrive following a Poisson distribution at the rate of 10 per hour. Yvette wants to know:a) The average waiting time in line.b) The average length of the line. P
Debra Bishop's cabinet-making shop, in Des Moines, has five tools that automate the drilling of holes for the installation of hinges. These machines need setting up for each order of cabi- nets. The orders appear to follow the Poisson distribution, averaging 3 per 8-hour day. There is a single
Two technicians, working separately, monitor a group of 5 computers that run an automated manufacturing facility. It takes an average of 15 minutes (exponentially distributed) to adjust a computer that develops a problem. Computers run for an average of 85 minutes (Poisson distributed) without
One mechanic services 5 drilling machines for a steel plate manufacturer. Machines break down on an average of once every 6 working days, and breakdowns tend to follow a Poisson distribution. The mechanic can handle an average of one repair job per day. Repairs follow an exponential distribution.a)
The Pontchartrain Bridge is a 16-mile toll bridge that crosses Lake Pontchartrain in New Orleans. Currently, there are 7 toll booths, each staffed by an employee. Since Hurricane Katrina, the Port Authority has been considering replacing the employees with machines. Many factors must be considered
The registration area has just opened at a large con- vention of building contractors in Las Vegas. There are 200 people arriving per hour (Poisson distributed), and the cost of their waiting time in the queue is valued at $100 per person per hour. The Las Vegas Convention Bureau provides servers
Refer to Problem D.22. A new registration manager, Lisa Houts, is hired who initiates a program to entertain the people in line with a juggler whom she pays $15/hour. This reduces the waiting costs to $50 per hour.a) What is the optimal number of servers?b) What is the cost for the system, per
How much time would the new layout save?
If casting personnel were paid $9.50 per hour and molding per- sonnel were paid $11.75 per hour, how much could be saved per hour with the new factory layout?
Should George have made the change in layout?
Which option do you recommend?
Which of the following is not a key operating characteristic for a queuing system?a) Utilization rateb) Percent idle timec) Average time spent waiting in the system and in the queued) Average number of customers in the system and in the queuee) Average number of customers who renege
Customers enter the waiting line at a cafeteria's only cash register on a first-come, first-served basis. The arrival rate follows a Poisson dis- tribution, while service times follow an exponential distribution. If the average number of arrivals is 6 per minute and the average ser- vice rate of a
Which of the following is not an assumption in a multichannel queuing model?a) Arrivals come from an infinite, or very large, population.b) Arrivals are Poisson distributed.c) Arrivals are treated on a first-in, first-out basis and do not balk or renege.d) Service times follow the exponential
A company has one computer technician who is responsible for repairs on the company's 20 computers. As a computer breaks, the technician is called to make the repair. If the repairperson is busy, the machine must wait to be repaired. This is an example of:a) a multichannel system.c) a constant
If it took 563 minutes to complete a hospital's first cornea transplant, and the hospital uses a 90% learning rate, what is the cumulative time to complete:a) the first 3 transplants?b) the first 6 transplants?c) the first 8 transplants?d) the first 16 transplants? P
Beth Zion Hospital has received initial certification from the state of California to become a center for liver transplants. The hospital, however, must complete its first 18 transplants under great scrutiny and at no cost to the patients. The very first transplant, just completed, required 30
Refer to Problem E.5. Beth Zion Hospital has just been informed that only the first 10 transplants must be performed at the *Note: means the problem may be solved with POM for Windows and/or Excel OM.hospital's expense. The cost per hour of surgery is estimated to be $5,000. Again, the learning
Manceville Air has just produced the first unit of a large industrial compressor that incorporated new technology in the control circuits and a new internal venting system. The first unit took 112 hours of labor to manufacture. The company knows from past experience that this labor content will
Methods analysis focuses on:a) the design of the machines used to perform a task.b) how a task is accomplished.c) the raw materials that are consumed in performing a task.d) reducing the number of steps required to perform a task. LOS. The least preferred method of establishing labor standards
John Howard, a student at the University of South Alabama, bought 6 bookcases for his dorm room. Each required unpacking of parts and assembly, which included some nailing and bolting. John completed the first bookcase in 5 hours and the second in 4 hours.a) What is his learning rate?b) Assuming
When product demand fluctuates and yet you maintain a constant level of employment, some of your cost savings might include:a) reduction in hiring costs.b) reduction in layoff costs and unemployment insurance costs.e) lack of need to pay a premium wage to get workers to accept unstable
How might you adjust a traditional assembly line to address more "core job characteristics"?
How would Hard Rock's value system work for automobile assembly line workers? (Hint: Consider Hackman and Oldham's core job characteristics.)
How does Hard Rock's human resource department support the company's overall strategy?
What has Hard Rock done to lower employee turnover to half the industry average?
What is the cost per unit for this task in direct labor cost?
How many units should be produced at this workstation per day?
Is the sample size adequate?
The first vending machine that Michael Vest, Inc., assembled took 80 labor-hours. Estimate how long the fourth machine will require for each of the following learning rates:a) 95%b) 87%c) 72% P
How big should the sample be for a statistically accurate stan- dard (at, say, the 99.73% confidence level and accuracy of 5%)?
The Winter Garden Hotel has 400 rooms. Every day, the housekeepers clean any room that was occupied the night before. If a guest is checking out of the hotel, the housekeepers give the room a thorough cleaning to get it ready for the next guest. This takes about 30 minutes. If a guest is staying
Supervisor Vic Sower at Huntsville Equipment Company is concerned that material is not arriving as promptly as needed at work cells. A new kanban system has been installed, but there seems to be some delay in getting the material moved to the work cells so that the job can begin promptly. Sower is
Sharpening your pencil is an operation that may be divided into eight small elemental motions. In MTM terms, each element may be assigned a certain number of TMUs: Reach 4 inches for the pencil Grasp the pencil Move the pencil 6 inches Position the pencil Insert the pencil into the sharpener
A total of 300 observations of Bob Ramos, an assembly- line worker, were made over a 40-hour work week. The sample also showed that Bob was busy working (assembling the parts) during 250 observations.a) Find the percentage of time Bob was working.b) If you want a confidence level of 95%, and if 3%
A random work sample of operators taken over a 160- hour work month at Tele-Marketing, Inc., has produced the follow- ing results. What is the percent of time spent working?
The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers.a) Compute the standard time for the bag-packing task.b)
Based on a careful work study in the Richard Dulski Corp., the results shown in the following table have been observed: Observations (minutes) Performance Element 1 2 3 4 5 Rating (%) Prepare daily reports 35 40 33 42 39 120 Distribute reports Photocopy results Label and package reports 3 3 5 5 4
A time study of a factory worker has revealed an aver- age observed time of 3.20 minutes, with a standard deviation of 1.28 minutes. These figures were based on a sample of 45 observations. Is this sample adequate in size for the firm to be 99% confident that the standard time is within 5% of the
Each year, Lord & Taylor, Ltd., sets up a gift-wrapping station to assist its customers with holiday shopping. Preliminary observations of one worker at the station produced the following sample time (in minutes per package). Based on this small sample, what number of observations would be neces-
Peter Rourke, a loan processor at Wentworth Bank, has been timed performing four work elements, with the results shown in the following table. The allowances for tasks such as this are personal, 7%; fatigue, 10%; and delay, 3%. Task Element 1 234 4 Observations (minutes) Performance Rating (%) 1 2
The results of a time study to perform a quality control test are shown in the following table. On the basis of these observa- tions, determine the normal and standard time for the test, assuming a 23% allowance factor. P Observations (minutes) Task Element Performance Rating (%)
Virginia College promotes a wide variety of executive- training courses for firms in the Arlington, Virginia, region. Director Marilyn Helms believes that individually typed letters add a per- sonal touch to marketing. To prepare letters for mailing, she con- ducts a time study of her secretaries.
A hotel housekeeper, Alison Harvey, was observed five times on each of four task elements, as shown in the following
Susan Cottenden clocked the observed time for weld- ing a part onto truck doors at 5.3 minutes. The performance rating of the worker timed was estimated at 105%. Find the normal time for this operation. Note: According to the local union contract, each welder is allowed 3 minutes of personal time
After training, Mary Fernandez, a computer techni- cian, had an average observed time for memory-chip tests of 12 sec- onds. Mary's performance rating is 100%. The firm has a personal fatigue and delay allowance of 15%.a) Find the normal time for this process.b) Find the standard time for this
Jell Lee Beans is famous for its boxed candies, which are sold primarily to businesses. One operator had the following observed times for gift wrapping in minutes:. The operator has a performance rating of 105% and an allowance factor of 10%. What is the standard time for gift wrapping? P
A Northeast Airlines gate agent, Chip Gilliken, gives out seat assignments to ticketed passengers. He takes an average of 50 seconds per passenger and is rated 110% in performance. How long should a typical agent be expected to take to make seat assignments? P

Showing 4000 - 4100 of 6090

First
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Last

Step by Step Answers

Services

Sitemap
Fun
Definitions
Become Tutor
Used Textbooks
Study Help Categories
Recent Questions
Expert Questions
Campus Wear
Sell Your Books

Company Info

Security
Copyrights
Privacy Policy
Terms & Conditions
SolutionInn Fee
Scholarship
Online Quiz
Give Feedback, Get Rewards

Get In Touch

About Us
Contact Us
Career
Jobs
FAQ
Student Discount
Campus Ambassador

Secure Payment

Download Our App

© 2026 SolutionInn. All Rights Reserved