document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1044388>Question 1044388</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sixty five percent of 12th graders attend school in a particular urban district. If a sample of 450 12th grade children is selected. Find the probability that at least 290 are actually enrolled in the school.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #659665 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=659665\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The point estimate is 0.65*450=292.5<BR>\n" );
document.write( "The standard error is sqrt {(p)(1-p)/n}<BR>\n" );
document.write( "sqrt {0.65*0.35/450)}=sqrt(102.3750)=10.12<BR>\n" );
document.write( "z=(290-292.5)/10.12=-0.247<BR>\n" );
document.write( "Want P (z>-0.247)=0.5975<BR>\n" );
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