document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1085207>Question 1085207</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A RANDOM SAMPLE OF 400 MEMBERS OF LABOR FORCE IN A FIVE STATE REGION SHOWED THAT 32 WERE UNEMPLOYED. CONSTRUCT THE 95% CONFIDENCE INTERVAL FOR THE PROPORTION UNEMPLOYED IN THE REGION. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #699275 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=699275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The interval width is z(0.975)*sqrt (0.08*0.92)/400; sqrt term=0.01356.<BR>\n" );
document.write( "The 0.975 is the z-value with 0.025 on each end or 95%. The sqrt is of p*(1-p)/n, and p is 32/400=0.08, the point estimate.<BR>\n" );
document.write( "0.0266 is the interval width.<BR>\n" );
document.write( "That is above and below the point estimate<BR>\n" );
document.write( "(0.0534, 0.1066) is 95% CI\r<BR>\n" );
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