HW12 sec8.5 and 8.6: Problem 1 Previous Problem Problem List Next Problem (1 point) 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 19 obituaries from newspapers from rural towns in Idaho give x = 80.84 and s = 2.55. 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 # , e.g. mu > 1 for the mean is greater than 1, mu