document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=630638>Question 630638</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A regression analysis between sales (Y) and advertising (X) (both in dollars) resulted in the following equation:<BR>\n" );
document.write( " = 100 + 2000X\r<BR>\n" );
document.write( "\n" );
document.write( "The above equation implies that an<BR>\n" );
document.write( "Answer<BR>\n" );
document.write( "A.		increase of $1 in advertising is correlated with an increase of $2,000 in sales.\r<BR>\n" );
document.write( "\n" );
document.write( "B.		increase of $1 in advertising is correlated with an increase of $2 in sales.\r<BR>\n" );
document.write( "\n" );
document.write( "C.		increase of $1 in advertising is correlated with an increase of $100 in sales.\r<BR>\n" );
document.write( "\n" );
document.write( "D.		increase of $1 in advertising is correlated with an increase of $2100 in sales.<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 #397073 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=397073\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A regression analysis between sales (Y) and advertising (X) (both in dollars) resulted in the following equation:<BR>\n" );
document.write( "= 100 + 2000X <BR>\n" );
document.write( "The above equation implies that an<BR>\n" );
document.write( "Answer<BR>\n" );
document.write( "A. increase of $1 in advertising is correlated with an increase of $2,000 in sales. <BR>\n" );
document.write( "B. increase of $1 in advertising is correlated with an increase of $2 in sales. <BR>\n" );
document.write( "C. increase of $1 in advertising is correlated with an increase of $100 in sales. <BR>\n" );
document.write( "D. increase of $1 in advertising is correlated with an increase of $2100 in sales.<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Ans: A<BR>\n" );
document.write( "Comment: slope is always the amount y changes (sales) when x (ads) <BR>\n" );
document.write( "increases by one.\r<BR>\n" );
document.write( "\n" );
document.write( "---<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );