1 point You measure the lifetime of a random sample of 64 tires of a...
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1 point You measure the lifetime of a random sample of 64 tires of a certain brand The sample mean is x 50 months Suppose that the lifetimes for tires of this brand follow a Normal distribution with unknown mean and standard deviation o 5 months A 90 confidence interval for u is 49 8 to 50 2
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