Run a multiple regression using the above data With profit a
     Run a multiple regression using the above data. (With profit as the dependent variable).  Compare the result of question (1) with another regression equation obtained without the food sales variable.  Which of the models do you prefer? Why?  Interpret your results for (1) and (2).  In writing your paper, you should start by indicating the purpose of the study. Also, discuss the methodology and conclusions. 
  
  Solution

