document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1116768>Question 1116768</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A survey of 280 homeless persons showed that 63 were veterans. Construct a&#8203; 90% confidence interval for the proportion of homeless persons who are veterans. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #731697 by </B><A HREF=/tutors/aboutme.mpl?userid=passionn><B>passionn(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=passionn><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=731697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z=1.645 <BR>\n" );
document.write( "p=63/280=0.225 <BR>\n" );
document.write( "CI=p-z(&#8730;(p(1-p) )/n))&#8804;&#928;<p+z(&#8730;(p(1-p) )/n)) <BR>\n" );
document.write( "CI=0.225-1645(&#8730;(0.225(1-0.225) )/280))&#8804;&#928;<0.225+1.645(&#8730;(0.225(1-0.225)/280))<BR>\n" );
document.write( "CI=0.184<&#928;<0.266 <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );