document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1197906>Question 1197906</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a recent survey of 1192 students, 965 of them would like to recommend www.helpyourmath.com to their friends. Construct a 99% confidence interval to estimate the proportion of all students who would recommend www.helpyourmath.com to their friends.\r<BR>\n" );
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document.write( "Give your answers to three decimals: ( ______  , ______ ) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #831365 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=831365\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> n = 1192, p = 965/1192 = .810<BR>\n" );
document.write( "99% CI, z = 2.576<BR>\n" );
document.write( "ME = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z%2Asqrt%28%28p%281-p%29%29%2Fn%29 ALIGN=MIDDLE  ALT=\"z%2Asqrt%28%28p%281-p%29%29%2Fn%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Plug and Play<BR>\n" );
document.write( "ME = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2.576%2Asqrt%28%28.81%28.19%29%29%2F1192%29 ALIGN=MIDDLE  ALT=\"2.576%2Asqrt%28%28.81%28.19%29%29%2F1192%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= .029\r<BR>\n" );
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document.write( ".810 ± .029generates  CI(.781,.839) </SPAN>\n" );
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