document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120586>Question 1120586</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The distribution of room and board expenses per year at a four-year college is normally distribute with a mean of $5850 and standard deviation of $1125. Random samples of size 20 are drawn from this population and the mean of each sample is determined. Which of the following mean expenses would be considered unusual? <BR>\n" );
document.write( "a) 5180<BR>\n" );
document.write( "b)6180<BR>\n" );
document.write( "c)6350<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 #737184 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=737184\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The standard error is sd/sqrt(n), which is 1125/sqrt(20)=$251.56<BR>\n" );
document.write( "b and c wouldn't be common, but a is 2 2/3 sd away from the mean and would be the most unusual. </SPAN>\n" );
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