document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=716114>Question 716114</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help\r<BR>\n" );
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document.write( "Sample with size n = 100 has mean = 30. Assuming the population standard deviation is 8, construct 95% confidence interval for population mean. Use formula , z&#945;/2 = 1.96 \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #439745 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=439745\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sample with size n = 100 has mean = 30. Assuming the population standard deviation is 8, construct 95% confidence interval for population mean. Use formula , z&#945;/2 = 1.96 <BR>\n" );
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document.write( "x-bar = 30<BR>\n" );
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document.write( "E = z*s/sqrt(n) = 1.96*(8/sqrt(100)) = 1.568<BR>\n" );
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document.write( "95% CI: 30-1.568 < u < 30+1.568<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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