document.write( "Question 1042156: A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1000 pounds. At a 95% level, how many elephants need to be weighed so the average weight will be accurate to within 350 pounds?
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document.write( " A.
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document.write( "74
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document.write( " B.
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document.write( "32
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document.write( " C.
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document.write( "45
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document.write( " D.
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document.write( "38
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #657109 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1000 pounds. At a 95% level, how many elephants need to be weighed so the average weight will be accurate to within 350 pounds? \n" ); document.write( "A.74;B.32;C.45;D.38 \n" ); document.write( "------ \n" ); document.write( "n = [1.96*1000/350]^2 = 32 when rounded up \n" ); document.write( "---------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |