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The US Navy is interested in acquiring a new communications relay for its submarines. Manufacturers tested...

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Statistics

The US Navy is interested in acquiring a new communicationsrelay for its submarines. Manufacturers tested 50 units and foundthe mean time between failures to be 2607 minutes, and the samplestandard deviation to be 675. Find a 95% CI for the mean timebetween failures. (Assume the sample comes from a normalpopulation.)

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Solution Given that 2607s 675n 50Degrees of freedom df n 1 50 1    See Answer
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