document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1041543>Question 1041543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It was found that in a sample of 90 teenage boys, 70% of them have received speeding tickets. What is the 90% confidence interval of the true proportion of teenage boys who have received speeding tickets?<BR>\n" );
document.write( "A. 0.584 < p < 0.830<BR>\n" );
document.write( "B. 0.136 < p  < 0812<BR>\n" );
document.write( "C. 0.615 < p < 0.805<BR>\n" );
document.write( "D. 0.620 < p < 0.780 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #656505 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=656505\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the SE= z*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28p%29%2A%281-p%29%2Fn%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28p%29%2A%281-p%29%2Fn%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=1.645*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28.7%2A.3%2F90%29 ALIGN=MIDDLE  ALT=\"sqrt%28.7%2A.3%2F90%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=0.0795<BR>\n" );
document.write( "(0.6205,0.7795)<BR>\n" );
document.write( "This is closest to D. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );