OPERATIONS MANAGEMENT W/ CNCT+
12th Edition
ISBN: 9781259574931
Author: Stevenson
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 4.S, Problem 17P
A major television manufacturer has determined that its 40-inch LED televisions have a mean service life that can be modeled by a
a. What probability can you assign to service lives of at least (1) five years? (2) six years? (3) seven and one-half years?
b. If the manufacturer offers service contracts of four years on these televisions what percentage can be expected to fail from near out during the service period?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A manufacturer of programmable calculators is attempting to determine a reasonable free-serviceperiod for a model it will introduce shortly. The manager of product testing has indicated that thecalculators have an expected life of 30 months. Assume product life can be described by an exponential distribution.a. If service contracts are offered for the expected life of the calculator, what percentage of thosesold would be expected to fail during the service period?
A company installs new central-heating furnaces and has found that for 15% of all installations, a return visit is needed to make some modifications. Six installations were made in a particular week. Assume independence of outcomes for these installations.a. What is the probability that a return visit will be needed in all these cases?b. What is the probability that a return visit will be needed in none of these cases?c. What is the probability that a return visit will be needed in more than 1 of these cases?
Embassy Publishing Company received a six-chapter manuscript for a new college textbook. The editor of the college division is familiar with the manuscript and estimated a 0.7207 probability that the textbook will be successful. If successful, a profit of $850,000 will be realized. If the company decides to publish the textbook and it is unsuccessful, a loss of $150,000 will occur.
Before making the decision to accept or reject the manuscript, the editor is considering sending the manuscript out for review. A review process provides either a favorable (F) or an unfavorable (U) evaluation of the manuscript. Past experience with the review process suggests probabilities
P(F) = 0.7
and
P(U) = 0.3
apply. Let
s1 = the textbook is successful,
and
s2 = the textbook is unsuccessful.
The editor's initial probabilities of s1 and s2 will be revised based on whether the review is favorable or unfavorable. The revised probabilities are as follows:
P(s1|F) = 0.85
P(s2|F) = 0.15…
Chapter 4 Solutions
OPERATIONS MANAGEMENT W/ CNCT+
Ch. 4.5 - Prob. 1.1RQCh. 4.5 - Prob. 1.2RQCh. 4.8 - LEGO A/S IN THE PINK Lego A/S overcame the recent...Ch. 4.11 - THE CHALLENGES OF MANAGING SERVICES Services can...Ch. 4.11 - THE CHALLENGES OF MANAGING SERVICES Services can...Ch. 4.S - Prob. 1DRQCh. 4.S - Prob. 2DRQCh. 4.S - Prob. 3DRQCh. 4.S - Consider the following system: Determine the...Ch. 4.S - A product is composed of four parts. In order for...
Ch. 4.S - A system consists of three identical components....Ch. 4.S - A product engineer has developed the following...Ch. 4.S - The guidance system of a ship is controlled by a...Ch. 4.S - One of the industrial robots designed by a leading...Ch. 4.S - A production line has three machines A, B, and C,...Ch. 4.S - Prob. 8PCh. 4.S - A Web server has five major components that must...Ch. 4.S - Repeat Problem 9 under the condition that one of...Ch. 4.S - Hoping to increase the chances of reaching a...Ch. 4.S - An electronic chess game has a useful life that is...Ch. 4.S - A manufacturer of programmable calculators is...Ch. 4.S - Lucky Lumen light bulbs have an expected life that...Ch. 4.S - Prob. 15PCh. 4.S - Prob. 16PCh. 4.S - A major television manufacturer has determined...Ch. 4.S - Prob. 18PCh. 4.S - Determine the availability for each of these...Ch. 4.S - Prob. 20PCh. 4.S - A manager must decide between two machines. The...Ch. 4.S - Prob. 22PCh. 4.S - Auto batteries have an average life of 2.7 years....Ch. 4 - Prob. 1DRQCh. 4 - Prob. 2DRQCh. 4 - Prob. 3DRQCh. 4 - Prob. 4DRQCh. 4 - Prob. 5DRQCh. 4 - Prob. 6DRQCh. 4 - Prob. 7DRQCh. 4 - Prob. 8DRQCh. 4 - a. What is meant by the term life cycle? b. Why...Ch. 4 - Prob. 10DRQCh. 4 - Prob. 11DRQCh. 4 - Prob. 12DRQCh. 4 - Prob. 13DRQCh. 4 - Explain what quality function development is and...Ch. 4 - Prob. 15DRQCh. 4 - Prob. 16DRQCh. 4 - Prob. 17DRQCh. 4 - Prob. 18DRQCh. 4 - Prob. 19DRQCh. 4 - Describe some of the trade-off that are...Ch. 4 - Prob. 2TSCh. 4 - Prob. 3TSCh. 4 - Prob. 1CTECh. 4 - Prob. 2CTECh. 4 - Prob. 3CTECh. 4 - Prob. 4CTECh. 4 - Prob. 5CTECh. 4 - Give two examples of unethical conduct involving...Ch. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prepare a service blueprint for each of these...Ch. 4 - Prepare a service blueprint for each of these post...Ch. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prepare a table similar to that shown in Problem...
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 hospital has three independent fire alarm systems, with reliabilities of .95, .97, and .99. In the event of a fire, what is the probability that a warning would be given?arrow_forwardEmbassy Publishing Company received a six-chapter manuscript for a new college textbook. The editor of the college division is familiar with the manuscript and estimated a 0.65 probability that the textbook will be successful. If successful, a profit of $750,000 will be realized. If the company decides to publish the textbook and it is unsuccessful, a loss of $250,000 will occur. Before making the decision to accept or reject the manuscript, the editor is considering sending the manuscript out for review. A review process provides either a favorable (F) or unfavorable (U) evaluation of the manuscript. Past experience with the review process suggests that probabilities P(F) = 7 and P(U) = 0.3 apply. Let s1 = the textbook is successful, and s2 = the textbook is unsuccessful. The editor’s initial probabilities of s1 and s2 will be revised based on whether the review is favorable or unfavorable. The revised probabilities are as follows: P(s1 | F) = 0.65 P(s1 | U) =…arrow_forwardA major television manufacturer has determined that its 40-inch LED televisions have a meanservice life that can be modeled by a normal distribution with a mean of six years and a standarddeviation of one-half year.a. What probability can you assign to service lives of at least (1) five years? (2) six years? (3)seven and one-half years?arrow_forward
- Embassy Publishing Company received a six-chapter manuscript for a new college textbook. The editor of the college division is familiar with the manuscript and estimated a 0.7 probability that the textbook will be successful. If successful, a profit of $210,000 will be realized. If the company decides to publish the textbook and it is unsuccessful, a loss of $50,000 will occur. Before making the decision to accept or reject the manuscript, the editor is considering sending the manuscript out for review. A review process provides either a favorable (F) or unfavorable (U) evaluation of the manuscript. Past experience with the review process suggests that probabilities P(F) = 0.6 and P(U) = 0.4 apply. Let s1 = the textbook is successful, and s2 = the textbook is unsuccessful. The editor’s initial probabilities of s1 and s2 will be revised based on whether the review is favorable or unfavorable. The revised probabilities are as follows: P(s1 | F) = 0.15 P(s1 | U) = 0.465 P(s2 | F) = 0.85…arrow_forwardA factory has a frequency of breakdown of their machine per month as shown in table below and the cost of breakdown remains the same but the cost of preventive maintenance becomes ksh 1250 per month, and given that if preventive maintenance is performed, probability of a machine breakdown is negligible. Determine whether the engineer should use preventive maintenance or would it be cheaper to repair the machine when it breakdown. Frequency of breakdown of machine per month Number of breakdown 0 1 2 3 Frequency 20 30 40 10arrow_forward7. Assume that there is a 9% rate of disk drive failure in a year. a. If all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. If copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive? a. With two hard disk drives, the probability that catastrophe can be avoided is nothing. (Round to four decimal places as needed.)arrow_forward
- Classify the following risks into variation, foreseen uncertainty, unforeseen uncertainty, and chaos:a. A hurricane on the U.S. East Coast floods a regional warehouse destroying a large amount of stock.b. A machine on the plant floor breaks down for an hour.c. Bad weather on the weekend causes an increase in demand for umbrellas.d. A cool summer causes a decrease in demand for air conditioners for that season.e. The excavation process for a new manufacturing plant in the U.S. Midwest uncovers an archaeological find of such significance that no building can take place on that site and a new site for the plant must be found.f. Competitors to the iPad launch smaller tablet computers before the iPad mini is ready to launch, thus negatively affecting demand for the iPad.g. The Second World War caused auto manufacturers to switch to producing military vehicles.h. A drug is found to have dangerous side effects following its launch.i. The transportation disruptions, including the grounding of…arrow_forwardAt DataTech Solutions, the reliability of their server systems is a critical factor in maintaining smooth operations. The company knows that the probability of a server experiencing no downtime due to technical issues is 0.95. When a server is functioning smoothly, there is a 0.9 probability that the network performance is also optimal. However, if a server encounters technical problems, the probability of having optimal network performance drops to 0.3. A server is chosen at random for assessment, and its network performance is found to be optimal. What is the updated probability that the server is running without any technical issues?arrow_forwardA family of mutual funds maintains a service that allows clients to switch money among accounts through a telephone call. It was estimated that 3.2% of callers either get a busy signal or are kept on hold so long that they may hang up. Fund management assesses any failure of this sort as a $10 goodwill loss. Suppose that 2,000 calls are attempted over a particular period. a. Find the mean and standard deviation of the number of callers who will either get a busy signal or may hang up after being kept on hold. b. Find the mean and standard deviation of the total goodwill loss to the mutual fund company from these 2,000 calls.arrow_forward
- Scenario: Imagine you are a physician who has been whose patient has the following matter up to you. The patient has an unusual infection, which lasts for a short time. The infection has a 15% chance of causing permanent brain damage. You may undertake a procedure that will prevent the brain damage from the infection (with 100% probability). However, the procedure itself has a 20% chance of causing brain damage itself. Should you undertake the procedure or not? Question: Identify whether the scenario poses a problem to solve or a decision to be made. Explain HOW and WHY you came to your answer?arrow_forwardThe president of AS Electronics, Inc., has two design options for his new line of cathode ray tubes (CRTs). The forecast for the CRTs is 100,000 units annually. The company will make 100,000 units using one of the two designs at a cost of $75 each. Good CRTs can be sold, but bad CRTs are destroyed and have no salvage value. (Ignore any disposal cost issues for the moment.) The company can sell good CRTs for $150. Design option A has a .90 probability of yielding 59 good CRTs per 100 and a .10 probability of yielding 64 good CRTs per 100. The design will cost $1,000,000. Design option B has a .80 probability of yielding 64 good CRTs per 100 and a .20 probability of yielding 59 good CRTs per 100. The design will cost $1,350,000. Draw and label the decision tree (for two design options with two possible yields each). Calculate the first-year payoff for each option. [Payoff = Annual Revenues – annual manufacturing costs – design costs] Calculate the expected payoff for each of the…arrow_forward
arrow_back_ios
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