document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=467824>Question 467824</A>: <I><SPAN STYLE=\"word-break: break-all;\">   A recent poll found that out of a sample of 500 random, independent people 381 are making an effort to recycle at home.  <BR>\n" );
document.write( "7. Find a 90% confidence interval for the population proportion.  <BR>\n" );
document.write( " A. 0.738 < p < 0.786 <BR>\n" );
document.write( "B. 0.731 < p < 0.793 <BR>\n" );
document.write( "C. -0.138 < p < 1.662 <BR>\n" );
document.write( "D. Not possible due to the Success/Failure requirement <BR>\n" );
document.write( "E. none of these  <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #321059 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=321059\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> B. 0.731 < p < 0.793 .\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p+%2B-+1.645%2Asqrt%28%28p%2Aq%29%2Fn%29 ALIGN=MIDDLE  ALT=\"p+%2B-+1.645%2Asqrt%28%28p%2Aq%29%2Fn%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where p = 381/500 = 0.762, q = 1 - 0.762 = 0.238, and n = 500. </SPAN>\n" );
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