document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=456931>Question 456931</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me to solve this question\r<BR>\n" );
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document.write( "Must show work\r<BR>\n" );
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document.write( "	A sample of 100 elements produced a mean of 84 and a standard deviation of 8. Find the 99% confidence interval for the population mean. Assume the population is normally distributed. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #313591 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=313591\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A sample of 100 elements produced a mean of 84 and a standard deviation of 8. Find the 99% confidence interval for the population mean. Assume the population is normally distributed.<BR>\n" );
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document.write( "sample mean = 84<BR>\n" );
document.write( "Margin of Error = ME = 2.5758*8/sqrt(100) = 2.0607<BR>\n" );
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document.write( "99% CI: 84-2.0607 < u < 84+2.0607<BR>\n" );
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document.write( "99% CI: 81.94 < u < 86.06<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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