document.write( "Question 914437: a clinical trial tests a mehod designed to increase the probability of conceivin a girl. in the study 400 babies were born, and 320 of them were girls. use the sample data to construct a 99% confidence interval estimate of the percentage of girls born \n" ); document.write( "
Algebra.Com's Answer #555110 by ewatrrr(24785)\"\" \"About 
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p(girl) = 320/400 = .8
\n" ); document.write( "ME = 2.576\"sqrt%28%28.8%2A.2%29%2F400%29\"
\n" ); document.write( "CI: (.8-ME , .8+ME)
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