Question
A state-by-state survey found that the proportions of adults who are smokers in state A and state B were 19.5% and 24.1%, respectively. (Suppose the
A state-by-state survey found that the proportions of adults who are smokers in state A and state B were
19.5% and 24.1%, respectively. (Suppose the number of respondents from each state was 3000.)
At =0.01,
can you support the claim that the proportion of adults who are smokers is greater
in state A than in state B? Assume the random samples are independent.
Find the standardized test statistic.
z=
(Round to two decimal places as needed.)
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Prealgebra
Authors: Elayn Martin Gay
7th edition
321955048, 978-0321955043
