document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973593>Question 973593</A>: <I><SPAN STYLE=\"word-break: break-all;\"> James scored 64% on the first test, and 70% on the second. Was James right in thinking that he had a much better result in the second test? \r<BR>\n" );
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document.write( "Term 1 test mean=58%   Standard deviation=6<BR>\n" );
document.write( "Term 2      mean=65%    Standard deviation= 5<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 #595720 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=595720\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> James scored 64% on the first test, and 70% on the second. Was James right in thinking that he had a much better result in the second test? <BR>\n" );
document.write( "Term 1 test mean=58% Standard deviation=6<BR>\n" );
document.write( "Term 2 mean=65% Standard deviation= 5<BR>\n" );
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document.write( "Procedure:: Compare the z-scores<BR>\n" );
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document.write( "z(64) = (64-58)/6 = 7/6<BR>\n" );
document.write( "z(70) = (70-65)/5 = 1<BR>\n" );
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document.write( "Ans: Since 7/6 > 1, the 1st test score was better.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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