document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1124646>Question 1124646</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a regression analysis between sales ( in rs 1000) and advertising (in rs) resulted in following Least squares line<BR>\n" );
document.write( "y=80000+5x. this implies <BR>\n" );
document.write( "a) increase of rs 1 in advertising is expected to result in an increase of rs 5 in sales.<BR>\n" );
document.write( "b) increase of rs 5 in advertising is expected to result in increase of rs 5000 in sales <BR>\n" );
document.write( "c) increase of rs 1 in advertising is expected to result in increase of rs 80005 in sales.<BR>\n" );
document.write( "d) increase of rs 1 in advertising is expected to result in increase of rs 5000 in sales. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #740982 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=740982\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> advertising is x, because it is independent and can be controlled.<BR>\n" );
document.write( "the response variable, y, is sales, which is not controlled.\r<BR>\n" );
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document.write( "Therefore, an increase in 1 rs results in an increase in sales of 5, which means rs 5000, since sales is in units of thousands.  It's like an rpm gauge on a car.  From 1 to 2 is an increase of 1, but it really means 1000 rpm.\r<BR>\n" );
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document.write( "D </SPAN>\n" );
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