document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=280046>Question 280046</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A company recruits personnel for its sales department on the basis of special tests designed to judge the potential of the candidates. The following table gives test scores and the mean daily sales for 9 executives.<BR>\n" );
document.write( "a.	Fit a regression line of Y on X. <BR>\n" );
document.write( "b.	Prepare a table of predicted values and residuals.\r<BR>\n" );
document.write( "\n" );
document.write( "Mean daily Score(Y) <BR>\n" );
document.write( "	34	39	30	33	36	38	45	41	48<BR>\n" );
document.write( "Test Score (X)<BR>\n" );
document.write( "	59	69	50	56	64	66	77	73	83\r<BR>\n" );
document.write( "\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 #203685 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=203685\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A company recruits personnel for its sales department on the basis of special tests designed to judge the potential of the candidates. The following table gives test scores and the mean daily sales for 9 executives.<BR>\n" );
document.write( "a. Fit a regression line of Y on X.<BR>\n" );
document.write( "y = 0.548x + 1.85<BR>\n" );
document.write( "-------------------------------- <BR>\n" );
document.write( "b. Prepare a table of predicted values and residuals.<BR>\n" );
document.write( "The regression line produces a predicted y-value for each x-value.<BR>\n" );
document.write( "The difference, Observed-Predicted, is the residual.  You are asked<BR>\n" );
document.write( "to find the nine residual values.<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------------------------- <BR>\n" );
document.write( "Mean daily Score(Y) <BR>\n" );
document.write( "34 39 30 33 36 38 45 41 48<BR>\n" );
document.write( "Test Score (X)<BR>\n" );
document.write( "59 69 50 56 64 66 77 73 83 <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );