document.write( "Question 1183033: using a 95% confidence interval, estimate the population mean given that the sample mean is equal to 1500,the sample variance is equal to 15625 and the sample size of 100 \n" ); document.write( "
Algebra.Com's Answer #813195 by Boreal(15235)\"\" \"About 
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the half-interval is t(0.975, df=99)* sqrt (15625/100)
\n" ); document.write( "=1.984*sqrt(156.25)
\n" ); document.write( "=1.984*12.5
\n" ); document.write( "=24.8
\n" ); document.write( "1475.2 < mu < 1524.8
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