document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1026625>Question 1026625</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You draw a sample from the population of a town (n=312) and find out that of this sample, 23% are highly educated and 27% are low-educated. What is the 80% confidence level for the proportion of highly educated people in this town? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641876 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=641876\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You draw a sample from the population of a town (n=312) and find out that of this sample, 23% are highly educated and 27% are low-educated. What is the 80% confidence level for the proportion of highly educated people in this town?<BR>\n" );
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document.write( "sample proportion = p-hat = 0.23<BR>\n" );
document.write( "ME = 1.2816*sqrt[0.23*0.77/312] = 0.0305<BR>\n" );
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document.write( "80% CI:: 0.23 - 0.0305 < p < 0.23 + 0.0305<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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