document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1195600>Question 1195600</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 71% of 111 delegates in a political convention favored changing the rules to restrict the number of potential candidates. What is the 95% confidence interval for the population proportion.\r<BR>\n" );
document.write( "\n" );
document.write( "Give your answers as decimals, to two places.\r<BR>\n" );
document.write( "\n" );
document.write( " _____< p < _____ <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #828338 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=828338\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 95% half interval is z(SE)=1.96*sqrt(0.6396*0.3604)/111=z*0.0456=0.0893 <BR>\n" );
document.write( "Exact SE is sqrt ((71/111)(40/111)/111), but it's the same here.  <BR>\n" );
document.write( "the point estimate is 0.6396<BR>\n" );
document.write( "the interval is (0.5503, 0.7289) or (0.55 ,0.73) or 0.55 < p < 0.73 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );