A company has branch offices in eight regions. Customers within each region are classified as either "High Value" or "Medium Value" and are coded using the variable name VALUE. In the last year, the total amount of purchases per customer is used as the response variable.
Suppose there is a significant interaction between REGION and VALUE.
What can you conclude?
A . More high value customers are found in some regions than others.
B . The difference between average purchases for medium and high value customers depends on the region.
C . Regions with higher average purchases have more high value customers.
D . Regions with higher average purchases have more medium value customers.
Answer: B