Welcome to your interview.
The question is on your right: Cleaning Multi-Channel Touchpoint Data. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
If you were asked to analyze a dataset containing multi-channel marketing touchpoints at Marsh, what steps would you take to clean the data and identify the most profitable channel?