document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288682>Question 288682</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sample of 900 observations taken from a population produced a sample proportion of 0.32. Make a 90% confidence interval for p. Round the answers to 3 decimal places.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209217 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=209217\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A sample of 900 observations taken from a population produced a sample proportion of 0.32. <BR>\n" );
document.write( "Make a 90% confidence interval for p. Round the answers to 3 decimal places.<BR>\n" );
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document.write( "standard error: 1.645*sqrt[0.32*0.68/900] = 0.026<BR>\n" );
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document.write( "90% CI: 0.32-0.026 < p < 0.32+0.026<BR>\n" );
document.write( "90% CI: 0.294 <  p < 0.346<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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