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Category > Math Posted 27 Aug 2017 My Price 6.00

A pollster wants to construct a 95% confidence interval for the proportion of adults who believe that economics conditions are getting better.

A pollster wants to construct a 95% confidence interval for the proportion of adults who believe that economics conditions are getting better. A Gallop poll taken in July 2010 estimates this proportion to be 0.33. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.068? 

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Status NEW Posted 27 Aug 2017 11:08 AM My Price 6.00

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