How Spotify Analyzes Thousands of A/B Tests With Confidence

Confidence (spotify-confidence on PyPi) is an open-source Python library that has been used to analyse experiments at Spotify for more than four years and is now also an integrated part of Spotify's internal experimentation platform, where it's used to automatically analyse thousands of experiments every year. In this talk we will discuss its benefits, demonstrate how to use it, and talk about what lies ahead.