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Katie thinks that people living in a rural environment have a healthier lifestyle than other...

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Katie thinks that people living in a rural environment have a healthier lifestyle than other people She believes the average lifespan in the USA is 77 years A random sample of 17 obituaries from newspapers from rural towns in Idaho give 80 63 and s 0 87 Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years a State the null and alternative hypotheses Type mu for the symbol u e g mu 1 for the mean is greater than 1 mu 1 for the mean is less than 1 mu not 1 for the mean is not equal to 1 Ho Ha b Find the test statistic t c Answer the question Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years Use a 10 level of significance Type Yes or No

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