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It is thought that not as many Americans buy presents to celebrate Valentine's Day anymore. A random sample of 4000 Americans yielded 2200 who

It is thought that not as many Americans buy presents to celebrate Valentine's Day anymore. A random sample of 4000 Americans yielded 2200 who bought their significant other a present and celebrated Valentine's Day. Estimate the true proportion of all Americans who celebrate Valentine's Day using a 90% confidence interval. Express the answer in the form pE and round to four decimal places. OA. 0.55000.0129 B. 0.43750.0129 OC. 0.55000.4048 D. 0.43750.4048

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