document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=178207>Question 178207</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sixty-four students in an introductory college economics class were asked how many credits they<BR>\n" );
document.write( "had earned in college, and how certain they were about their choice of major. Research question:<BR>\n" );
document.write( "At &#945; = .01, is the degree of certainty independent of credits earned?\r<BR>\n" );
document.write( "\n" );
document.write( "Earned                            Very Uncertain Somewhat Certain Very Certain Row Total<BR>\n" );
document.write( "           0–9                                12            8                3        23<BR>\n" );
document.write( "         10–59                               8             4               10        22<BR>\n" );
document.write( "       60 or more                          1             7               11        19<BR>\n" );
document.write( "Col Total                           21            19               24        64<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #133180 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=133180\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sixty-four students in an introductory college economics class were asked how many credits they<BR>\n" );
document.write( "had earned in college, and how certain they were about their choice of major. Research question:<BR>\n" );
document.write( "At &#945; = .01, is the degree of certainty independent of credits earned? <BR>\n" );
document.write( "Earned Very Uncertain Somewhat Certain Very Certain Row Total<BR>\n" );
document.write( "0–9 12 8 3 23<BR>\n" );
document.write( "10–59 8 4 10 22<BR>\n" );
document.write( "60 or more 1 7 11 19<BR>\n" );
document.write( "Col Total 21 19 24 64\r<BR>\n" );
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document.write( "--------------------------<BR>\n" );
document.write( "Ho: the row and the column factor are independent<BR>\n" );
document.write( "Ha: they are dependent<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "I ran a Chi-Sq test on the 3 x 4 matrix of values to find<BR>\n" );
document.write( "Test statistic : 21.9643<BR>\n" );
document.write( "----<BR>\n" );
document.write( "The p-value is 0.0002037...<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Conclusion: Since p-value is less than 1%, reject Ho.<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );