1. Three hundred identical cathode ray tubes (CRTS) placed into servicesimultaneously on January 1, 1976, experienced the following numbers of failuresthrough December 31, 1988:1983YearNumber of failures19841985198619871988131916342138Assume that there were no failures before 1983.a. Based on these data, estimate the cumulative distribution function (CDF) of aCRT chosen at random.Using the results of part (a), estimate the probability that a CRT chosen atrandom13.1 Reliability of a Single Component 753b. Lasts more than 5 years.c. Lasts more than 10 years.d. Lasts more than 12 years.e. That has survived for 10 years fails in the 11th year of operation.

Note: I have answered sub-part from (a) to (c) as per the guidelines. Kindly post the remaining…

Answered: 1. Three hundred identical cathode ray…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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do fast.
CAN YOU PROVIDE THIS IN EXCEL, I CANT FIGURE OUT HOW TO DO THE EQUATIONS IN EXCEL. One of the industrial robots designed by a leading producer of servomechanisms has four major components. Components’ reliabilities are .98, .95, .94, and .90. All of the components must function in order for the robot to operate effectively.a. Compute the reliability of the robot.b. Designers want to improve the reliability by adding a backup component. Due to space limitations, only one backup can be added. The backup for any component will have the same reliability as the unit for which it is the backup. Which component should get the backup in orderto achieve the highest reliability?c. If one backup with a reliability of .92 can be added to any one of the main components, which component should get it to obtain the highest overall reliability?
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The remaining part of the case and question below : Fortunately, shipboard emergencies are infrequent, but when they do occur they are problematic. For instance, the Costa Concordia hit a rock and sank off Italy, causing32 people to die. A generator fire on the Carnival Triumph stranded 4000 passengers for four days. Sporadically, viruses causing diarrhea and vomiting strike cruise ships, causingCarnival to take an infected ship out of service to eradicate all traces of the virus by sanitizing virtually every object on board.Although these incidents are costly, the cruise industry has a fatality rate three times better than airlines. Economic Issues Spending for a cruise is generally considered discretionary. During recessions, people are more apt to take shorter cruises and to embark from nearby ports rather than flying to faraway points of departure. Interestingly, however, in comparison with other segments of the tourist industry, cruise lines have fared well during economic…
In the prediction reliability model, assembled components are structured serially. Thus, calculated failure rates for assemblies are a ...................of the individual failure rates for components within the assembly.
2. An electronic device has three components. Those components are in series, so the failure of one causes the failure of the device. The reliability (probability that there is no fault) the device can be improved by installing one or two drives reserve in each component. The following table shows the reliability r and the cost c (see image). The capital available for the manufacture of the device is $10,000. How should the device be manufactured? Make the formulation in dynamic programming of the problem. Hint: The objective is to maximize reliability, that is, the function is multiplicative, not additive.

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