document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=139746>Question 139746</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780072966930/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> An expert witness in a case of alleged racial discrimination in a state university school of nursing introduced a regression of the determinants of Salary of each professor for each year during an 8-year period (n = 423) with the following results, with dependent variable Year (year in which the salary was observed) and predictors YearHire (year when the individual was hired), Race (1 if individual is black, 0 otherwise), and Rank (1 if individual is an assistant professor, 0 otherwise). Interpret these results.\r<BR>\n" );
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document.write( "Variable                     Coefficient      t                        p<BR>\n" );
document.write( "Intercept                     &#8722;3,816,521    &#8722;29.4                   .000<BR>\n" );
document.write( "Year                           1,948         29.8                   .000<BR>\n" );
document.write( "YearHire                      &#8722;826          &#8722;5.5                    .000<BR>\n" );
document.write( "Race                          &#8722;2,093        &#8722;4.3                    .000<BR>\n" );
document.write( "Rank                          &#8722;6,438        &#8722;22.3                   .000<BR>\n" );
document.write( "R2 = 0.811                R2adj = 0.809                           s = 3,318\r<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 #101930 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=101930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An expert witness in a case of alleged racial discrimination in a state university school of nursing introduced a regression of the determinants of Salary of each professor for each year during an 8-year period (n = 423) with the following results, with dependent variable Year (year in which the salary was observed) and predictors YearHire (year when the individual was hired), Race (1 if individual is black, 0 otherwise), and Rank (1 if individual is an assistant professor, 0 otherwise). Interpret these results.<BR>\n" );
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document.write( "Variable Coefficient t p<BR>\n" );
document.write( "Intercept &#8722;3,816,521 &#8722;29.4 .000<BR>\n" );
document.write( "Year 1,948 29.8 .000<BR>\n" );
document.write( "YearHire &#8722;826 &#8722;5.5 .000<BR>\n" );
document.write( "Race &#8722;2,093 &#8722;4.3 .000<BR>\n" );
document.write( "Rank &#8722;6,438 &#8722;22.3 .000<BR>\n" );
document.write( "R2 = 0.811 R2adj = 0.809 s = 3,318 <BR>\n" );
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document.write( "Reg. Eq: Salary = -3816.541 + 1948(year variable) -826(year hire)<BR>\n" );
document.write( "=2.093(race variable)-6.438(Rank variable)<BR>\n" );
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document.write( "The .0000 p-values means to reject the hypotheses that the coefficient is zero.<BR>\n" );
document.write( "R2 = 0.811 means that 81.1 % of the variation between salary and<BR>\n" );
document.write( "the independent variables is explained by the regression equation.<BR>\n" );
document.write( "s = 3318 means the variance on the predicted salary is $3,318<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "PS: This problem has been posted a number of times.  What is the<BR>\n" );
document.write( "source? what is the text used to cover this material?\r<BR>\n" );
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