document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=637808>Question 637808</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An instructor has been accused of sexual discrimination in grading, a serious charge. The dean takes a random sample of 150 grades posted by the instructor in the past and arrives at the results shown in the table. \r<BR>\n" );
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document.write( "Male Students<BR>\n" );
document.write( "Female Students<BR>\n" );
document.write( "Grade A<BR>\n" );
document.write( "15<BR>\n" );
document.write( "19<BR>\n" );
document.write( "Grade B<BR>\n" );
document.write( "21<BR>\n" );
document.write( "15<BR>\n" );
document.write( "Grade C<BR>\n" );
document.write( "26<BR>\n" );
document.write( "16<BR>\n" );
document.write( "Grade D<BR>\n" );
document.write( "9<BR>\n" );
document.write( "14<BR>\n" );
document.write( "Grade F<BR>\n" );
document.write( "9<BR>\n" );
document.write( "6\r<BR>\n" );
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document.write( "The Dean is willing to take only a 5% risk of incorrectly supporting the charge of sexual discrimination. Calculate the appropriate test statistic.<BR>\n" );
document.write( " options:<BR>\n" );
document.write( "	4.8936<BR>\n" );
document.write( "	2.2121<BR>\n" );
document.write( "	23.9473<BR>\n" );
document.write( "	4.628 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #401889 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=401889\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Degrees of freedom:  4\r<BR>\n" );
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document.write( "Test Statistic, Chi Square: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%284.8936%29 ALIGN=MIDDLE  ALT=\"highlight%284.8936%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Critical Value:        9.48772<BR>\n" );
document.write( "P-Value:             0.2984\r<BR>\n" );
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document.write( "Fail to Reject the Null Hypothesis.<BR>\n" );
document.write( "There is no enough evidence to support the charge of sexual discrimination. </SPAN>\n" );
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