Make sure that you address the problem/issues/questions in the case
1. Share descriptive stats and relevant graphical analyses
2. Build a statistical model to explain the relationship b/w sales and promotional efforts and interpret the regression output.
3. Does the in-store demo program boost the sales? If so, for how long does the sales lift last?
4. What other factors affect the sales of GB products?
5. Recommendations for GB?
6. Recommendations for your model and/or future research?
