You might need: Calculator, o Z table
Gallup is a company that carries out daily opinion polls on a variety of topics. In a recent daily poll of
1,000 randomly selected US adults, 334 said they were engaged at work.
Based on this sample, which of the following is a 90% confidence interval for the proportion of all US
adults who would say they are engaged at work?
Choose 1
(0.296,0.372)
(0.305,0.363)
(0.309,0.359)