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Andrew thinks that people living in a rural environment have a healthier lifestyle than other people. He believes the average lifespan in the USA is 77 years. A random sample of 18 obituaries from newspapers from rural towns in Idaho give \(\bar{x} = 78.92\) and \(s = 2\text{.}\) Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years?
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