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A sample of 25 relays is chosen for life testing. The time to failure of a relay is exponentially distributed. The test is terminated after 800 hours, with five failures being observed at times 610, 630, 680, 700, and 720 hours.

Failed items are not replaced. Estimate the mean life and the failure rate of the relays. Find a 95% confidence interval for the mean life.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92199682

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