Question

A study was designed to estimate the prevalence of smoking in Harris county. Of 675 people...

A study was designed to estimate the prevalence of smoking in Harris county. Of 675 people sampled, 522 were non-smokers. What is the 95% Confidence Interval estimate for the prevalence?

a

(74.2%, 80.5%)

b

(19.5%, 25.8%)

c

(.19, .25)

d

None of the above

0 0
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Answer #1

Answer Given datta X: 522 . Confiden ce in terva the prevalei find the esti mate nce for X S22 75 O.77 con fidehce nterva forPC PO.77- 0.03 O.77 + O.03 0. 80 .724 Cos estimate confidence inter val Prevalen ce the 「74ンCp< 802 74.2 LP 80.5% 0,5 74. 2 A

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