document.write( "Question 1198504: Assume that a sample is used to estimate a population mean
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Algebra.Com's Answer #832133 by ewatrrr(24785)\"\" \"About 
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document.write( "\"ME+=+z%2Asigma%2Fsqrt%28n%29\"  , \"ME+=+1.645%2A19.9%2Fsqrt%28969%29\" = .840\r\n" );
document.write( "83.5- .840 < \"mu\" < 83.4 + .840\r\n" );
document.write( "82.66 < \"mu\" < 84.34\r\n" );
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document.write( " = CI	z = value\r\n" );
document.write( "90%	z =1.645\r\n" );
document.write( "92%	z = 1.751\r\n" );
document.write( "95%	z = 1.96\r\n" );
document.write( "98%	z = 2.326\r\n" );
document.write( "99%	z = 2.576\r\n" );
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