document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1085569>Question 1085569</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A civil service efficiency expert developed a test measuring job satisfaction of civil service clerks.  The following information was obtained from a random sample of 10 clerks.\r<BR>\n" );
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document.write( "X	48	92	32	56	40	72	16	56	76	80<BR>\n" );
document.write( "Y	13	2	14	10	14	6	17	8	3	7<BR>\n" );
document.write( "Where; x is the job satisfaction index and y is the # of days absent from work in 1 year.\r<BR>\n" );
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document.write( "i.	Draw a scatter diagram for the data<BR>\n" );
document.write( "ii.	From the scatter diagram, would you say slope is closest to 1, 0, or -1?<BR>\n" );
document.write( "iii.	Find the equation of the line.<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 #699708 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=699708\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=\"black\" face=\"times\" size=\"3\">Part i)\r<BR>\n" );
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document.write( "Using technology (specifically the program <a  rel=nofollow HREF= \"https://www.geogebra.org/home?ggbLang=en\">GeoGebra</a>), I got this scatter diagram<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"https://i.imgur.com/dyjlfvU.png\"><BR>\n" );
document.write( "The coordinates for each point listed in the diagram are:<BR>\n" );
document.write( "A = (48, 13)<BR>\n" );
document.write( "B = (92, 2)<BR>\n" );
document.write( "C = (32, 14)<BR>\n" );
document.write( "D = (56, 10)<BR>\n" );
document.write( "E = (40, 14)<BR>\n" );
document.write( "F = (72, 6)<BR>\n" );
document.write( "G = (16, 17)<BR>\n" );
document.write( "H = (56, 8)<BR>\n" );
document.write( "I = (76, 3)<BR>\n" );
document.write( "J = (80, 7)\r<BR>\n" );
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document.write( "Part ii)\r<BR>\n" );
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document.write( "The slope is closest to -1 because of how the points move downward as we read from left to right.\r<BR>\n" );
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document.write( "Part iii)\r<BR>\n" );
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document.write( "Using technology, I got the equation of the regression line to be approximately y = -0.20392x + 20.98278</font> </SPAN>\n" );
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