You need to estimate the average order value and give a confidence interval, but the distribution of orders is heavily skewed, with rare very large purchases. How would you calculate it, and what would you tell the client?
~4 min by voice
How to approach it
They're checking whether you understand how a heavy tail affects the mean and its confidence interval, whether you can honestly apply the CLT and the bootstrap given their limitations, and whether you can communicate the result to the client correctly, including the correct interpretation of the interval.
The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.