EBK OPERATIONS MANAGEMENT
13th Edition
ISBN: 8220103675987
Author: Stevenson
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 4.S, Problem 14P
Lucky Lumen light bulbs have an expected life that is exponentially distributed with a mean of 20.000 hours. Determine the probability that one of these light bulbs will last
a. At least 24,000 hours
b. No longer than 4,000 hours
c. Between 4,000 hours and 24,000 hours
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
By means of extensive testing, a manufacturer has determined that its Super Sucker Vacuum Cleaner models have an expected life that is exponential with a mean of four years.Find the probability that one of these cleaners will have a life that endsa. After the initial four years of service.
Output from a process contains 0.02 defective unit. Defective units that go undetected into final assemblies cost $25 each to replace. An inspection process, which would detect and remove all defectives, can be established to test these units. However, the inspector, who can test 20 units per hour, is paid $8 per hour, including fringe benefits. Should an inspection station be established to test all units?
Assume that the line will operate at the same rate (i.e., the current production rate) regardless of whether or not the inspection operation is added.
a-1. Without the inspector, what is the current hourly cost of defects?
a-2. Should an inspection station be established to test all units based on costs alone?
multiple choice
Yes
No
a-3. If the inspection operation is added, what would be the cost to inspect each unit?
Note: Round your answer to 2 decimal places.
b. What would be the benefit (or loss) from establishing the inspection process?
Note: Round your answer…
i need help with calculating rate of diffusion for 3
crystals and 6 crystals
Diffusion
Diffusion
Diffusion
Spot
Spot
Time
Spot
Diameter 1
Diameter 3
Diameter 6
(min)
Crystal
Crystals
Crystals
(mm)
(mm)
(mm)
10
15
0-15
0-15
20
16
0-16
0-16
30
18
0-18
0-18
Time
Rate of
Diffusion for
Rate of
Diffusion for
3 Crystals
Rate of
Diffusion for
6 Crystals
(min)
1 Crystal
(mm/hr)
0-10
90
0-20
48
0-30
36
(mm/hr)
(mm/hr)
Rate [mm/h] = (diameter [mm] / time [min]) x 60 [min]
X
Chapter 4 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 4.4 - Prob. 1.1RQCh. 4.4 - Prob. 1.2RQCh. 4.8 - LEGO A/S IN THE PINK Lego A/S overcame the recent...Ch. 4.8 - Prob. 2.1RQCh. 4.8 - Prob. 2.2RQCh. 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. 3DRQ
Ch. 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
- typingarrow_forward- 2. Determine the state space for the system considering that a force F is applied in m2. m = 2kg 1 m2 = 3kg b₁ = 0.5kg k 1 = 15 k = 10 N m N m Sarrow_forwardPressurized steam at 4 4 0 K flows through a long, thin-walled pipe of 0.64 m diameter. The pipe is enclosed in a concrete casing that is of square cross section and 1.45m on a side. The axis of the pipe is centered in the casing, and the outer surfaces of the casing are maintained at 340 K . What is the rate of heat loss per unit length of pipe?arrow_forward
- Cpk can never be higher than Cp. T or F Non-parametric analysis is usually used for non-ratio and non-interval data. T or F Parametric analysis is stronger, better chance of not having a type II error, than non-parametric analysis T or Farrow_forwardA 10-inch industrial fire hydrant has a 6-inch diameter fire hose with a 0.77-inch nozzle that discharges a water jet into the air on the right end. The pressure in the hose is 60 psi and the flow rate is 2,236 GPM. What is the resultant axial force (net value only) the water exerts on the nozzle, in pounds? 6-in. Oa. 6,873 pounds Ob. 8,473 pounds Oc. 10,854 pounds Od. 12,926 poundsarrow_forward#5 Which of the following is a simulation? some method of generating virtual measurements that look like what would be gotten from a sample taking a series of measurements based on multiple samples measuring the mean and standard deviation of measurements from a sample specifying the expected mean and standard variation of measurements for an entire populationarrow_forward
- A product is composed of four parts. In order for the product to function properly in a given situation, each of the parts must function. Two of the parts have a 0.96 probability of functioning, and two have a probability of 0.99. (Leave your answers in 4 decimal places).arrow_forwardSouthern Mills Company One of the stages in the process of making denim cloth at the Southern Mills Company is to spin cotton yarn onto spindles for subsequent use in the weaving process. Occasionally the yarn breaks during the spinning process, and an operator ties it back together. Some number of breaks is considered normal; however, too many breaks may mean that the yarn is of poor quality. In order to monitor this process, the quality-control manager randomly selects a spinning machine each hour and checks the number of breaks during a 15-minute period. Following is a summary of the observations for the past 20 hours. Construct a c-chart using 3 limits for this process and indicate if the process was out of control at any time. Number of Number of Sample Breaks Sample Breaks 1 3 11 2 12 4 3 4 13 6 1 14 7 5 5 15 8 6 3 16 6 7 2 17 5 8 4 18 7 19 8 10 2 20 6arrow_forwardThe mean service time (x¯) of a physician is 25 minutes with a standard deviation (σ) of 1 minute. Upper specification limit (USL) is 30 minutes, whereas lower specification limit (LSL) is 20 for this process. What is the process capability ratio (cp) for this process? Is the process capable? Cp=1, barely capable Cp=1.5, capable Cp=1, not capable Cp=1.67, not capable Cp=1.67, definitely capablearrow_forward
- A nozzle is said to be a convergent nozzle_______ a)when the cross-section of the nozzle increases continuously from entrance to exit b)when the cross-section of the nozzle decreases continuously from entrance to exit c)when the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit d)none of the above Don't use chatgpt or other ai tool. If you know correct answer then attempt if you gave wrong answer I will give 10 dislikes and more from my friends accountarrow_forwardYou are a food specialist in a company that specializes inrefrigerated delicacies, and one of your brands requires beingmaintained at a temperature of 5°C. You determine averagewater activity (aw) at this temperature to be 0.2. One day, you are informed that the cooling systems onone of the delivery trucks carrying your company’s productsmalfunctioned while en route to its destination and it would notbe fixed until the next delivery. The driver has informed you thatthe temperature in the delivery bay of the truck is averaging55°C. You estimate a heat of sorption (Q) of 19 kJ/mol. Calculate the water activity of the brand at this elevatedtemperature and comment on it’s integrity. Should the deliverystill push through? Or should the products be recalled anddisposedarrow_forwardThe mean service time (x¯) of a hairdresser is 18 minutes with a standard deviation (σ) of 2 minutes. Upper specification limit (USL) is 22 minutes, whereas lower specification limit (LSL) is 15 minutes for this process. What is the process capability index (cpk) for this process? Is the process capable? Cpk=0.67, capable Cpk=1.5, capable Cpk=0.67, not capable Cpk=0.5, capable Cpk=0.5, not capablearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.
Process selection and facility layout; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=wjxS79880MM;License: Standard YouTube License, CC-BY