document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=283677>Question 283677</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A population has a standard deviation of 50. A random sample of 100 items from this population is selected. The sample mean is determined to be 600. At 95% confidence, the margin of error is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #205863 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=205863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A population has a standard deviation of 50. <BR>\n" );
document.write( "A random sample of 100 items from this population is selected. <BR>\n" );
document.write( "The sample mean is determined to be 600. <BR>\n" );
document.write( "At 95% confidence, the margin of error is<BR>\n" );
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document.write( "E = ts/sqrt(n)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "E = t(0.975, df= 99)*50/sqrt(100)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= 1.9842*50/10 <BR>\n" );
document.write( "---<BR>\n" );
document.write( "= 9.9211..<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );