Mathematics, 11.07.2019 23:30, Lions8457

Hays medical center wants to estimate the percentage of adults who exercise at least 1 hour per week. how large a sample should be selected in order to estimate this proportion with a 90% confidence level and a margin of error of at most 5%? (assume no preliminary estimate of p-hat is available.)

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Hays medical center wants to estimate the percentage of adults who exercise at least 1 hour per week...