Wanted the margin of error

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In a recent Pew Research Center poll, a majority of US adults agreed that changing a baby's genes to make the baby more intelligent is taking technology too far (p = .8). Interpret this, given that the margin of error was 4% (.04) with a 95% level of confidence:

If the Pew researchers had wanted the margin of error (at the 95% confidence level) to be only 3% (0.03) instead of 4%, what sample size should they have used?

Reference no: EM132192993

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