document.write( "Question 1177922: A survey is conducted and shows a 66% approval rating with a margin of error of ± 2.5% based on a chosen confidence level of 99%. determine the approximate number of people that were surveyed \n" ); document.write( "
Algebra.Com's Answer #807092 by ewatrrr(24785)\"\" \"About 
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document.write( "n = \"%28z%2FME%29%5E2+%28p%281-p%29%29%29\"\r\n" );
document.write( "n = \"%282.576%2F.025%29%5E2+%28.66%28.34%29%29%29\" = 1681.77 0r 1682 rounded up to next whole number\r\n" );
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