document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=526489>Question 526489</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A college believes that 28% of applicants to that school have parents who have remarried.  How large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 6 percentage points with 95% confidence?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #348535 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=348535\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A college believes that 28% of applicants to that school have parents who have remarried. How large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 6 percentage points with 95% confidence? <BR>\n" );
document.write( "-----<BR>\n" );
document.write( "n = [z/E]^2*p*q<BR>\n" );
document.write( "----<BR>\n" );
document.write( "n = [1.96/0.06]^2*0.28*0.72<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "n = 216 when rounded up<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );