document.write( "Question 923586: a random sample of 19 rainbow trout caught at Brainard Lake, Colorado, had mean length x=11.9 inches with sample standard deviation s=2.8 inches. Find a 99% confidence interval for the population mean length of all rainbow trout in this lake \n" ); document.write( "
Algebra.Com's Answer #560221 by stanbon(75887)\"\" \"About 
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a random sample of 19 rainbow trout caught at Brainard Lake, Colorado, had mean length x=11.9 inches with sample standard deviation s=2.8 inches. Find a 99% confidence interval for the population mean length of all rainbow trout in this lake
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\n" ); document.write( "x-bar = 11.9
\n" ); document.write( "ME = 2.5758*2.8/sqrt(19) = 1.6546
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\n" ); document.write( "99%CI:: 11.9-1.6546 < u < 11.9+1.6546
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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