A/B Testing: Metrics, Denominators and Guardrails

A/B Testing: Metrics, Denominators and Guardrails

Answer 15 questions randomly selected from a bank of 30. Choose one best answer per question. Pass with 12 correct answers. Original practice material, not an official certification exam.
1 из 15
An experiment's primary outcome is seven-day retention. Analysis begins one day after the final enrollment. What is missing?