Mathematics, 27.11.2019 01:31 naomicervero
Lois 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 12 obituaries from newspapers from rural towns in idaho give x¯=81.03 and s=1.53. 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 μ , 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) h0 : ha:
(b) find the test statistic, t =
Answers: 3
Mathematics, 21.06.2019 15:30
According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities
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Mathematics, 21.06.2019 19:10
Which graph represents the function g(x) = |x + 4| + 2?
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Mathematics, 21.06.2019 22:20
As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is
Answers: 2
Lois thinks that people living in a rural environment have a healthier lifestyle than other people....
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