document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=527808>Question 527808</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A study of elephants is conducted to determine the average weight of a certain subspecies of elephants.  The standard deviation for the population is 1500 pounds.  At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #349028 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=349028\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A study of elephants is conducted to determine the average weight of a certain subspecies of elephants. The standard deviation for the population is 1500 pounds. At a 99% level, how many elephants need to be weighed so the average weight will be accurate to within 200 pounds? <BR>\n" );
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document.write( "n = [z*s/E]^2<BR>\n" );
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document.write( "n = [2.5758*1500/200]^2 = 374 when rounded up<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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