Lead with the business implication, then the evidence. "We should do X because Y" is better than "The regression coefficient is Z."
Strong answers use analogies, concrete examples, and visual aids rather than technical jargon. They should mention tailoring the level of detail to the audience, leading with the "so what" before the "how", and creating narrative around the data. Best candidates test comprehension and iterate.
Communication is what separates good analysts from great ones. Ask them to explain a concept (e.g., confidence intervals) as if you were a non-technical VP.