Question: Example 3: Twenty air-conditioning systems designed for use by astronauts in Russia's Soyuz spacecraft were operated for 1,000 hours at a Russian test facility. Two

Example 3: Twenty air-conditioning systems

Example 3: Twenty air-conditioning systems designed for use by astronauts in Russia's Soyuz spacecraft were operated for 1,000 hours at a Russian test facility. Two of the systems failed during the test-one after 200 hours and the other after 600 hours. 1. Find the percent of failure FR(%). 2. Find the number of failures per unil v time FR(N). 3. Find the mean time between failures (MTBF) 4. If the typical Soyuz shuttle trip to the International Space Station lasts 6 days, Russia may note that the failure rate per trip is, what

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