A company is interested to know what the potential sales in units for 2009 ...

     | A company is interested to know what the potential   sales in units for 2009. To make this forecast the company uses information   from previous years which is given below:         Y X      |   Year Sales ($000) Advertising ($000)   |   2002   $8          $1    |   2003   $12 $2     |   2004   $18 $ 3     |   2005   $20 $ 3     |   2006   $30 $5     |   2007   $35 $6     |   2008   $60 $7     |   2009   $90 $9           INSTRUCTIONS:     |      |   A) Obtain the regression equation   |   B) Calculate sales for the year 2010 if the advertising was $ 12,000.   |   C) Develop the graph to the problem   |   D) Carry out the analysis of correlation and determination