document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=768200>Question 768200</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Forty-nine items are randomly selected from a population of 500 items. The sample mean is 40 and the sample standard deviation 9.\r<BR>\n" );
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document.write( "Develop a 99 percent confidence interval for the population mean? (Round your answers to 3 decimal places.)\r<BR>\n" );
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document.write( "thanks in advance for your help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #468198 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=468198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Forty-nine items are randomly selected from a population of 500 items. The sample mean is 40 and the sample standard deviation 9. <BR>\n" );
document.write( "Develop a 99 percent confidence interval for the population mean? (Round your answers to 3 decimal places.) <BR>\n" );
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document.write( "sample mean = x-bar = 40<BR>\n" );
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document.write( "ME = z*s/sqrt(n)  = 2.5758*9/sqrt(49) = 3.3118<BR>\n" );
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document.write( "99% CI: 40-3.3118 < u < 40+3.3118<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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