document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182740>Question 1182740</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 345 babies were​ born, and 276 of them were girls. Use the sample data to construct a 99​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?\r<BR>\n" );
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document.write( "__ < p __(Round to three decimal places as​ needed.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #813393 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=813393\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 99% confidence interval will be \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%5B1%5D+%2B-+t%5B0.995%5D%2Asqrt%28%28p%5B1%5D%2A%281-p%5B1%5D%29%29%2Fn%29%0D%0A%0D%0A=+276%2F345+%2B-+%282.59%29%2Asqrt%28%280.8%2A0.2%29%2F345%29%0D%0A%0D%0A=+0.8+%2B-+%282.59%29%2Asqrt%28%280.8%2A0.2%29%2F345%29+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " 0.744224 < p < 0.855776<BR>\n" );
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