SOLUTION: In a Gallup-type poll, 1080 randomly selected adults were surveyed and 28% of them said that they used the Internet for shopping at least a few timesa year. Construct a 99% confide

Question 1177252: In a Gallup-type poll, 1080 randomly selected adults were surveyed and 28% of them said that they used the Internet for shopping at least a few timesa year. Construct a 99% confidence interval for the true proportion of adults who shop on the Internet at least a few times a year.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
ME = 
z = 2.576

ME =  = .035


.28 - .035 <  < .28 + .035

CI: (.245, .315)

Wish You the Best in your Studies.

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