20 components are put on a non-replacement test and the times in failure in hours from the start of the test are : 350,590,850,1280,1650,2270,2800,3350,4400,4960 hours. Test was stopped after 5000 hours with 10 of the components still surviving. Assuming a constant failure rate determine: a) The mean time between failures. b) The constant failure rate. c) The reliabilyy after 1200 hours of operation. d) In a system, 3 of the above are connected in series, estimate reliabilty of the system after 800 hours of operation. e) In a system 3 of the above components are connected in parallel, estimate the reliabilty of the system after 800 hours of operation.
