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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Please complete the following assignment.
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1. Describe the difference between repairable and non-repairable items. What kind of effect might this difference have on reliability? List examples of repairable and non-repairable items in our everyday life. (10 points)
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2. Explain the difference between reliability and durability and how they can be specified in a product development program. (10 points)
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3. A space vehicle requires five out of its six main engines to operate in order to achieve orbit. If each engine has a reliability of 0.98, determine the reliability of achieving orbit. (20 points)
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4. What is the probability of having not more than 20 but not less than 10 failures if n=100, p=0.14 for a binomial distribution? (20 points)
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5. What is the probability of having not more than 20 but not less than 10 failures if n=100, p=0.14 for a normal distribution (mean=np, variance=npq)? (20 points)
6. In the question 3, we assume the six engines are independent. Please describe three factors that could invalidate this assumption. And how will it affect the results you have in question 3 if the independent assumption is invalid? (20 points)
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