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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 bought

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. What size sample should be obtained if a

90%

confidence interval was desired to estimate the true proportion within

2%?

Round up to the nearest whole number.

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