document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=244715>Question 244715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.  To document this assertion, Mr. McWhinney gathered the following sample information.  The X column indicates the number of client contacts last month, and the Y column shows the value of sales ($ thousands) last month for each client sampled.\r<BR>\n" );
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document.write( "Number of Contacts X 14,12,20,16,46<BR>\n" );
document.write( "Sales ($ thousands) Y 24,14,28,30,80<BR>\n" );
document.write( "Number of Contacts X 23,48,50,55,50<BR>\n" );
document.write( "Sales ($ thousands) Y 30,90,85,120,110\r<BR>\n" );
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document.write( "a. Determine the regression equation.<BR>\n" );
document.write( "b. Determine the estimated sales if 40 contacts are made.<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 #178936 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=178936\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The X column indicates the number of client contacts last month, and the Y column shows the value of sales ($ thousands) last month for each client sampled. <BR>\n" );
document.write( "Number of Contacts X 14,12,20,16,46<BR>\n" );
document.write( "Sales ($ thousands) Y 24,14,28,30,80<BR>\n" );
document.write( "Number of Contacts X 23,48,50,55,50<BR>\n" );
document.write( "Sales ($ thousands) Y 30,90,85,120,110 <BR>\n" );
document.write( "a. Determine the regression equation.<BR>\n" );
document.write( "f(# of contacts) = 2.195(# of contacts) - 12.201<BR>\n" );
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document.write( "b. Determine the estimated sales if 40 contacts are made.<BR>\n" );
document.write( "f(40) = 75.6<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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