document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1202821>Question 1202821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of visitors who plan to camp in the state. Current estimates are that 35% of visitors are campers.\r<BR>\n" );
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document.write( "How many visitors would you sample to estimate the population proportion of campers with a 95% confidence level and an error of 2%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #838066 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=838066\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> proportion error=CI*sqrt(p*(1-p)/n)<BR>\n" );
document.write( "0.02=1.96*sqrt((0.35*0.65/n))<BR>\n" );
document.write( "square both sides<BR>\n" );
document.write( "0.0004=3.8416*0.2275/n<BR>\n" );
document.write( "n=2185 rounded upward </SPAN>\n" );
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