document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1201714>Question 1201714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If n=260 and p' (p-prime) = 0.88, construct a 95% confidence interval.\r<BR>\n" );
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document.write( "Give your answers to three decimals.<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 #837684 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=837684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> CI = p' ± z*(sqrt(p'*(1-p')/n))\r<BR>\n" );
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document.write( "First find the z-score.\r<BR>\n" );
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document.write( "Use calculator , we can find that the z-score for a 95% confidence interval which is approximately 1.96.\r<BR>\n" );
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document.write( "plug in the values:\r<BR>\n" );
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document.write( "CI = 0.88 ±<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.96%2A%28sqrt%280.88%2A%281-0.88%29%2F260%29%29 ALIGN=MIDDLE  ALT=\"+1.96%2A%28sqrt%280.88%2A%281-0.88%29%2F260%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "= 0.88 ± 0.057\r<BR>\n" );
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document.write( "Round to three decimals\r<BR>\n" );
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document.write( "CI = (0.823, 0.937)<BR>\n" );
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