document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452767>Question 452767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Out of the 200 insomniacs, 98 reported regularly watching The Late Show with David Letterman before they began to count sheep.Calculate the margin of error for a 78% confidence interval of the true proportion of insomniacs who regularly watch David Letterman before counting sheep.\r<BR>\n" );
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document.write( "  A.  0.164 <BR>\n" );
document.write( " B.  0.056  <BR>\n" );
document.write( " C.  0.043  <BR>\n" );
document.write( " D.  0.136  <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 #311290 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=311290\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Out of the 200 insomniacs, 98 reported regularly watching The Late Show with David Letterman before they began to count sheep.Calculate the margin of error for a 78% confidence interval of the true proportion of insomniacs who regularly watch David Letterman before counting sheep.<BR>\n" );
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document.write( "p = 98/200 = 0.49<BR>\n" );
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document.write( "ME = z*sqrt[pq/n]<BR>\n" );
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document.write( "ME = 1.226528*sqrt[0.49*0.51/200] = 0.0434<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "A. 0.164 <BR>\n" );
document.write( "B. 0.056 <BR>\n" );
document.write( "C. 0.043 <BR>\n" );
document.write( "D. 0.136 \r<BR>\n" );
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