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Suppose a researcher wants to determine the current percentage of U.S. households using email. How many households must he survey in order to be 95%

Suppose a researcher wants to determine the current percentage of U.S. households using email. How many households must he survey in order to be 95% confident that the sample percentage is in error by no more than 0.06. He uses a result from a 2015 research study that showed 77% of households used email. ..... A. 189 O B. 96 O C. 374 OD. 12

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