Mathematics, 05.12.2019 17:31 keiolanibrooks
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 14 obituaries from newspapers from rural towns in idaho give x¯=79.04 and s=2.08. 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 =
(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)
Answers: 3
Mathematics, 21.06.2019 14:30, princessvaeh2625
The perimiter of a rectangle is 70 inches the legneth of the rectangle is 5 less than 3 times the width of the rectangle what is the width of the rectangle
Answers: 3
Mathematics, 21.06.2019 17:30, jruiz33106
1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?
Answers: 1
Katie thinks that people living in a rural environment have a healthier lifestyle than other people....
English, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00
Biology, 07.05.2021 01:00
Mathematics, 07.05.2021 01:00