Suppose your team is looking to see how interview scores may differ by location (while normalizing for differing roles) at your company.

You're given the below tables, detailing candidate roles/locations as well as associated interview scores. Using these tables, write a SQL query to return the average interview scores by role/location, and then provide the team with next steps outlining how you might test to see if the interview scores do indeed differ by location (you can assume the actual tables will have enough n-count for common statistical tests)....