4. Run statistical tests and interpret your results with non-technical jargon so your AD can understand your findings. You should run at least three statistical tests - below are some examples or you can also come up with your own questions: a. What factors are significantly related to the number of total purchases? b. Do Married households with children present purchase more than households without children present? c. Your supervisor insists that people who donate more are more loyal supporters of the department as whole. Therefore, people who donate an above average amount in the last 2 years would have more purchases. Justify or refute this statement using an appropriate statistical test