I applied online. The process took 3 weeks. I interviewed at Acumen (Washington, DC) in Dec 2017
Interview
Problem set with data analysis, one week later phone review; most questions are about the problem set given earlier. Got onsite interview at Washington D.C. had a one hour writing test on basic stats and three one-to-one interview on the company and stats.
Interview questions [1]
Question 1
Q: what do you know about healthcare and data involved in healthcare policies