Interview Guides
You work on a trading product where the team has developed a new signal or a workflow change intended to improve trader decision-making and execution quality. Because changes in trading behavior can affect both performance and risk, you want to evaluate the change carefully before rolling it out more broadly.
How would you design and analyze an A/B test for this new trading signal or workflow change? Walk through the hypothesis, metrics, randomization approach, sample size logic, and how you would decide whether to ship.
