Unformatted text preview: in the set { , 1 , Â· Â· Â· , 9 } at a 1% signiFcance level. b. Repeat for the set { 2 , 3 , Â· Â· Â· , 9 } . 3. (3 pts) (Textbook exercise 3.101) The lifetime T of a device has the pdf f T ( t ) = ( Î»eÎ» ( tT ) t â‰¥ T t < T a. Â±ind the reliability and MTTÂ± of the device. b. Â±ind the failure rate function. c. How many hours of operation can be considered to achieve 99% reliability? 4. (2 pts) (Textbook exercise 3.104) The lifetime T of a device is a Rayleigh random variable. a. Â±ind the reliability of the device. b. Â±ind the failure rate function. 1...
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 Fall '08
 GELFAND
 Probability theory, Textbook exercise

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