document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=440970>Question 440970</A>: <I><SPAN STYLE=\"word-break: break-all;\"> .  In a survey of 5100 T.V. viewers, 40% said they watch network news programs. Construct a 95% confidence interval for our estimate of the percentage of T.V. viewers who watch network news programs </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #304560 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=304560\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a survey of 5100 T.V. viewers, 40% said they watch network news programs. Construct a 95% confidence interval for our estimate of the percentage of T.V. viewers who watch network news programs<BR>\n" );
document.write( "------------------------------<BR>\n" );
document.write( "p-hat = 0.4<BR>\n" );
document.write( "ME = z*sqrt(pq/n)<BR>\n" );
document.write( "ME = 1.96*sqrt(0.4*0.6/5100) = 0.0134<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "95% CI: 0.4-0.0134 < p < 0.4+0.0134<BR>\n" );
document.write( "========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );