document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1171131>Question 1171131</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student scores 60 on a Mathematics test that has a mean of 54 and a standard deviation of 3, and she scores 80 on a history test with a mean of 75 and a standard deviation of 2. On which test did she perform better?<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 #796051 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=796051\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> She scored better on the history test with a higher grade.<BR>\n" );
document.write( "Relative to the rest of the class, she was 2 sd above the mean in Math (z=+2)<BR>\n" );
document.write( "and 2.5 sd above the mean for the history test for z=+2.5<BR>\n" );
document.write( "z=(x-mean)/sd to normalize the scores and make them comparable. <BR>\n" );
document.write( "She also scored better relative to the class on the history test. </SPAN>\n" );
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