document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1187283>Question 1187283</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Mathematical  Anxiety  Rating  Scale  (MARS)  measures  an individual's level of mathematical anxiety on a scale from 25 (no anxiety) to 100 (highest anxiety). A group of researchers administered the MARS to 50 students. One of the objectives of the study was to determine if there is  a  difference  between  levels  of  mathematical  anxiety  experienced  by male and female psychology students. With alpha level=0.05level of significance, is there evidence of a difference in the mean mathematical anxiety experienced by male and female psychology students?<BR>\n" );
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document.write( "Solution:<BR>\n" );
document.write( "Step 1: State the hypotheses.(5pts)Ho: <BR>\n" );
document.write( "Ha: <BR>\n" );
document.write( "Step 2: The level of significance and the critical region.<BR>\n" );
document.write( "Step 3: Compute the value of t test.<BR>\n" );
document.write( "Step 4: Decision rule. <BR>\n" );
document.write( "Step 5. Conclusion. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819205 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=819205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ho: Male=female (score)<BR>\n" );
document.write( "Ha: Male NE female<BR>\n" );
document.write( "alpha=0.05 p{reject Ho|Ho true}<BR>\n" );
document.write( "reject if |t|> 2.011<BR>\n" );
document.write( "test statistic is a t 0.975, df=48 (from (25-1) + (25-1))<BR>\n" );
document.write( "t= (x barM-xbarF)/SE the SE is sqrt (sM^2/nM+ sF^2/nF)<BR>\n" );
document.write( "Conclude either reject Ho or insufficient evidence to reject Ho </SPAN>\n" );
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