document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1169424>Question 1169424</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please Help\r<BR>\n" );
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document.write( "Find a 95% confidence interval for the true population proportion.\r<BR>\n" );
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document.write( "In a survey of 415 adults, 59% said that they favored the proposed environmental laws.<BR>\n" );
document.write( "Select one:\r<BR>\n" );
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document.write( "A.<BR>\n" );
document.write( "59% to 63.9%\r<BR>\n" );
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document.write( "B.<BR>\n" );
document.write( "54.1% to 63.9%\r<BR>\n" );
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document.write( "C.<BR>\n" );
document.write( "58.8% to 59.2%\r<BR>\n" );
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document.write( "D.<BR>\n" );
document.write( "56.5% to 61.5%THANK YOU!!<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 #794210 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=794210\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> half-interval for a 95%CI of a proportion is z(0.975)*sqrt(p(1-p)/n)<BR>\n" );
document.write( "=1.96*sqrt(0.59*0.41/415)<BR>\n" );
document.write( "=0.0473<BR>\n" );
document.write( "the interval is (54.27, 63.73)<BR>\n" );
document.write( "B is the best answer <BR>\n" );
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