document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=939439>Question 939439</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 95% confidence interval for the mean of a normal population is found to be 13.2 < µ < 22.4. What is the margin of error?\r<BR>\n" );
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document.write( "  A. 4.6 	<BR>\n" );
document.write( "  B. 4.4 	<BR>\n" );
document.write( "  C. 4.2 	<BR>\n" );
document.write( "  D. 5.6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #572420 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=572420\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2822.4-13.2%29%2F2 ALIGN=MIDDLE  ALT=\"%2822.4-13.2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 4.6\r<BR>\n" );
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document.write( "and...checking<BR>\n" );
document.write( "(22.4-4.6) = 17.8)<BR>\n" );
document.write( "CI:  17.8-4.6 < µ < 17.8+4.6<BR>\n" );
document.write( "CI: (13.2, 22.4) </SPAN>\n" );
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