document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=136383>Question 136383</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major. Research question: At &#945; = .01, is the degree of certainty independent of credits earned?\r<BR>\n" );
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document.write( "Credits 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 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #99903 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=99903\">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 had earned in college, and how certain they were about their choice of major. Research question: At &#945; = .01, is the degree of certainty independent of credits earned? Certainty <BR>\n" );
document.write( "Credits Earned Very Uncertain Somewhat Certain Very Certain Row Total <BR>\n" );
document.write( "0–........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" );
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document.write( "Ho: degree of certainty is independent of credis earned<BR>\n" );
document.write( "Ha: they are dependent<BR>\n" );
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document.write( "Ran a Chi-Sq on the data to get:<BR>\n" );
document.write( "Test Statistic: Chi-Sq = 14.7638<BR>\n" );
document.write( "p-value = 0.0222<BR>\n" );
document.write( "df = 6<BR>\n" );
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document.write( "Conclusion: Since p-value is greater that alpha = 1%, Fail to reject Ho.<BR>\n" );
document.write( "The test provides statistical evidence that degree of certainty and credits earned are independent.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );