document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1183454>Question 1183454</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A random sample of 200 male shoppers in pavilion shopping mall were interviewed to identify their reasons for coming to this particular mall. The factor 'i prefer Knox brand in the mall' was the most important reason for 120 of those interviewed. Estimate the likely percentage of all male shoppers who frequently this shopping mall primarily because of the Knox brand in the mall, using 97.5% confidence limits </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #813786 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=813786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p hat=120/200=0.6 the best estimate available<BR>\n" );
document.write( "97.5%CI half-interval is z (0.9875)*sqrt(p hat(1- p hat)/n)<BR>\n" );
document.write( "=2.24*sqrt(.24/200)<BR>\n" );
document.write( "=0.0776<BR>\n" );
document.write( "the CI is (0.5224, 0.6776) </SPAN>\n" );
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