Sample Data for Supermarket Profits Sample Data for Supermar

Sample Data for Supermarket Profits. Sample Data for Supermarket Profits. Supermarket Number Food Sales (tens of thousands of dollars) Nonfood Sales (tens of thousands of dollars) Store Size (thousands of square feet) Profit (thousands of dollars) Y 1 305 35 35 20 2 130 98 22 15 3 189 83 27 17 4 175 76 16 9 5 101 93 28 16 6 269 77 46 27 7 421 44 56 35 8 195 57 12 7 9 282 31 40 22 10 203 92 32 23

1.Run a multiple regression using the above data. (With profit as the dependent variable).

2. Compare the result of question (1) with another regression equation obtained without the food sales variable.

3. Which of the models do you prefer? Why?

4. Interpret your results for (1) and (2).

5. In writing your paper, you should start by indicating the purpose of the study. Also, discuss the methodology and conclusions.

Solution