Below Is a Scatterplot of Size of Company Bonuses (Y)

Multiple Choice

Below is a scatterplot of size of company bonuses (Y) by number of employees at the company (X) for unionized and non-unionized employees.What does the scatterplot suggest?

A) Using Union as an indicator variable in this model is appropriate.
B) Using the interaction term Employees*Union in the model is appropriate.
C) Union should not be included in the model as a variable.
D) Employees should not be included in the model as a variable.
E) None of the above.