taliajohnsom8362
27.03.2020 •
Mathematics
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 4747 who smoke. In an earlier study, the population proportion was estimated to be 0.30.3. How large a sample would be required in order to estimate the fraction of Americans over 4747 who smoke at the 85%85% confidence level with an error of at most 0.020.02? Round your answer up to the next integer.
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Ответ:
2/3
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