In the newspaper article referred to in Exercise 9.57, 32% of the 1600 adults polled said the

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In the newspaper article referred to in Exercise 9.57, 32% of the 1600 adults polled said the U.S. space program should emphasize scientific exploration. How large a sample of adults is needed in the poll if one wishes to be 95% confident that the estimated percentage will be within 2% of the true percentage?

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