![Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)](https://www.bartleby.com/isbn_cover_images/9780135639221/9780135639221_largeCoverImage.gif)
Rick Wing, salesperson for Wave Soldering Systems, Inc. (WSSI), has provided you with a proposal for improving the temperature control on your present machine. The machine uses a hot-air knife to cleanly remove excess solder from printed circuit boards; this is a great concept, but the hot-air temperature control lacks reliability. According to Wing, engineers at WSSI have improved the reliability of the critical temperature controls. The new system still has the four sensitive integrated circuits controlling the temperature, but the new machine has a backup for each. The four integrated circuits have reliabilities of .90, .92, .94, and .96. The four backup circuits all have a reliability of .90.
a) What is the reliability of the new temperature controller?
b) If you pay a premium, Wing says he can improve all four of the backup units to .93. What is the reliability of this option?
a)
![Check Mark](/static/check-mark.png)
To determine: The reliability of the new temperature controller.
Explanation of Solution
Draw a schematic diagram as shown in figure of the reliabilities of the four integrated circuits along with their respective back ups for the wave soldering machine given that
The combined reliabilities RC with backups for each integrated circuit can be expressed as follows
The reliability of the temperature controller is 0.9723.
b)
![Check Mark](/static/check-mark.png)
To determine: The reliability of this option.
Explanation of Solution
The reliability of each of the backup integrated circuits has been improved from 0.9 to 0.93. To calculate the reliability of the temperature controller, again draw a schematic diagram as shown in figure of the reliabilities of the four integrated circuits along with their respective back ups for the wave soldering machine given that
The combined reliabilities RC with backups for each integrated circuit can be expressed as follows
The reliability of the temperature controller improves to 0.9805 from an earlier figure of 0.9723.
Want to see more full solutions like this?
Chapter 17 Solutions
Pearson eText Principles of Operations Management: Sustainability and Supply Chain Management -- Instant Access (Pearson+)
- Rick Wing, salesperson for Wave Soldering Systems, Inc. (WSSI), has provided you with a proposal for improving the temperature control on your present machine. The machine uses a hot-air knife to cleanly remove excess solder from printed circuit boards; this is a great concept, but the hot-air temperature control lacks reliability. According to Wing, engineers at WSSI have improved the reliability of the critical temperature controls. The new system still has the four sensitive integrated circuits controlling the temperature, but the new machine has a backup for each. The four integrated circuits have reliabilities of 0.840.84, 0.860.86, 0.880.88, and 0.900.90. The four backup circuits all have a reliability of 0.840.84. Part 2 a) The overall reliability of the new temperature controller = 92.2592.25% (enter your response as a percentage rounded to two decimal places). Part 3 b) If you pay a premium, Wing says he can improve all four of the backup units to 0.870.87.…arrow_forwardRick Wing, salesperson for Wave Soldering Systems,Inc. (WSSI), has provided you with a proposal for improving thetemperature control on your present machine. The machine uses ahot-air knife to cleanly remove excess solder from printed circuit boards; this is a great concept, but the hot-air temperature con-trol lacks reliability. According to Wing, engineers at WSSI have improved the reliability of the critical temperature controls. The new system still has the four sensitive integrated circuits control-ling the temperature, but the new machine has a backup for each. The four integrated circuits have reliabilities of .90, .92, .94, and.96. The four backup circuits all have a reliability of .90.a) What is the reliability of the new temperature controller?b) If you pay a premium, Wing says he can improve all four of thebackup units to .93. What is the reliability of this option?arrow_forwardRick Wing, salesperson for Wave Soldering Systems,Inc. (WSSI), has provided you with a proposal for improving thetemperature control on your present machine. The machine uses ahot-air knife to cleanly remove excess solder from printed circuitboards; this is a great concept, but the hot-air temperature controllacks reliability. According to Wing, engineers at WSSI haveimproved the reliability of the critical temperature controls. Thenew system still has the four sensi tive integrated circuits controllingthe temperature, but the new machine has a backup for each.The four integrated circuits have reliabilities of .90, .92, .94, and.96. The four backup circuits all have a reliability of .90.a) What is the reliability of the new temperature controller?b) If you pay a premium, Wing says he can improve all four of thebackup units to .93. What is the reliability of this option?arrow_forward
- Rick Wing, salesperson for Wave SolderingSystems, Inc. (WSSI), has provided you with a proposal forimproving the temperature control on your present machine.The machine uses a hot-air knife to cleanly remove excess solder from printed circuit boards; this is a great concept, butthe hot-air temperature control lacks reliability. According toWing, engineers at WSSI have improved the reliability of thecritical temperature controls. The new system still has the foursensitive integrated circuits controlling the temperature, butthe new machine has a backup for each. The four integratedcircuits have reliabilities of .90, .92, .94, and .96. The fourbackup circuits all have a reliability of .90.a) What is the reliability of the new temperature controller?b) If you pay a premium, Wing says he can improve all fourof the backup units to .93. What is the reliability of thisoption?arrow_forwardYou are the Customer Service Executive in ZESSO company. You received a claim letter from a customer who is unhappy with the Maxx Massaging Chair he purchased from your company. The customer is requesting for a full refund due to poor performance of the product. According to the customer, the product automatically switches off after being used continuously for 5 hours. Write a letter to the customer to decline the request and explain the reasons/limitations that lead to the rejection. Use appropriate approach to write your letter. Your letter should be in about 150-200 words. In your letter, you will have to include the following: Turn down the request Reasons for the rejection Answer:arrow_forwardAn early warning security fence has three major components each must perform in order for the system to perform. Their reliabilities are .4, .3, and .2. The system reliability is equal to:arrow_forward
- Please do not give solution in image format thanku You have won two tickets to a Lady Gaga concert in Atlantic City. The concert is three days from now and you have to make travel arrangements. Calculate the reliability of each of the following options: Drive to Washington, DC, and take the bus to Atlantic City from there. Your car has a 79% chance of making it to DC. If it doesn’t make it to DC, you can hitchhike there with a 40% chance of success. The bus from Washington DC to Atlantic City has a 93% reliability.arrow_forwardOne of the industrial robots designed by a leading producer of servomechanisms has four major components. Component 0.98, 0.95, 0.94, and 0.90. All of the components must function in order for the robot to operate effectively. b. Designers want to improve the reliability by adding a backup component. Due to space limitations, only one backup cbackup for any component will have the same reliability as the unit for which it is the backup. Compute the reliability of the robot.arrow_forwardA serial system is assembled in house from 20 parts. To be successful in the marketplace the system has to have three sigma reliability. What level of reliability of each part is necessary to achieve that level of the overall performance?arrow_forward
- Assume that the system still costs $600 to fix every time it breaks down, and you are going to run the system 1000 times. You are considering improving your system. You have contacted a backup supplier of component 1. She tells you that the backup for component 1 will cost $50,000. What would the minimum reliability of the backup need to be to make the purchase worthwhile? (keep 4 decimals for intermediate calculations)arrow_forwardThree (3) computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a failure typically takes four hours to fix. What is the availability of the replicated service?arrow_forwardDetermine how TCAS have played a role in a flight safety without any support from air traffic controllers in the ground stations by analyzing the function of its componentsarrow_forward
- 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.
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337406659/9781337406659_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781259667473/9781259667473_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781259666100/9781259666100_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780135198100/9780135198100_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285869681/9781285869681_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781478623069/9781478623069_smallCoverImage.gif)