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# Consider a computer system that is subject to periodic diagnosis and mainte-nance every

ISBN: 9781119285427 322

## Solution for problem 1 Chapter 11.7

Probability and Statistics with Reliability, Queuing, and Computer Science Applications | 2nd Edition

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Probability and Statistics with Reliability, Queuing, and Computer Science Applications | 2nd Edition

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Problem 1

Consider a computer system that is subject to periodic diagnosis and mainte-nance every 1000 h. The diagnosismaintenance service is assumed not to beperfect, and the probability of its being able to correctly diagnose and correctthe fault (if it exists) is c. The expected life y of the system is to be fitted as apower function of the coverage factor c:y = a + bec.(Here e denotes the base of the natural logarithm.) Using the following data(adapted from Ingle and Siewiorek [INGL 1976]), estimate the parameters a, b,and compute the coefficient of determination (if this is found to be unsatisfactory,then plotting a scatter diagram may help you find a more appropriate functionclass):ci yi (h)0.2 11,9600.4 15,9500.6 23,9200.8 47,8300.9 95,6700.92 120,0000.94 159,5000.96 239,2000.98 478,340

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Assignment # 2 STA 5205, 5126 and 4202 Date: Monday, October 5, 2015 This assignment is based on Chapters 3 and 4. You must show all necessary work to get full credit. Please submit your assignment in due time. Some selected questions will be graded. Pl keep 1” margin in all sides of the paper. You must define both null and alternative hypotheses for any test related...

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