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Mathematics, 27.09.2021 14:00 trapqueenriz12

Based on a 2018 General Social Survey poll, a 95% confidence interval for the proportion of all U. S. adults that were born in the United States is 0.8580 to 0.8850. What proportion of the sample responded that they were born in the United States?
What is the margin of error for the confidence interval?

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