Question: Q3: DETERMINING MEAN TIME BETWEEN FAILURES Thirty air-conditioning systems designed for use by astronauts in Russia's Soyuz spacecraft were operated for 1,400 hours at a

Q3: DETERMINING MEAN TIME BETWEEN FAILURES Thirty air-conditioning systems designed for use by astronauts in Russia's Soyuz spacecraft were operated for 1,400 hours at a Russian test facility. Three of the systems failed during the testone after 200 hours, the second after 600 hours, the third after 400 hours. Determine mean time between failures (MTBF)

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