Expedia Group™, as a global online travel solution provider, heavily relies on A/B testing to continuously bring the best travel experience to our consumers and business partners. We at the Experimentation Science & Statistics team keep exploring new methodologies and techniques to add to the testing capability, enabling more robust and flexible experimentation across all Expedia Group™ brands.
One recent example is the capability to conduct an experiment with ratio metrics, especially how to determine the sample size.