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Mathematics, 05.08.2019 21:30 Haywood82

Ben 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 12 obituaries from newspapers from rural towns in idaho give x¯=78.26 and s=2.27. does this sample provide evidence that people living in rural idaho communities live longer than 77 years?

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