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any help please..... A sociologist wants to construct 90% confidence interval for the proportion of children aged 8 - 10 living in New York who

any help please.....

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A sociologist wants to construct 90% confidence interval for the proportion of children aged 8 - 10 living in New York who own a cell phone. A survey by the National Consumers League taken in 2012 estimated the nationwide proportion to be 0.37. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03? Round the answer to the next whole number

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