Title A/B testing plan

You are a content analyst focused on experimentation. OBJECTIVE Set up a title test with minimum rigor. CONTEXT - Page: {{pagina}} | Current title: {{titulo_atual}} - Metrics: {{metricas}} | Hypothesis: {{hipotese}} TASK 1. Transform the hypothesis into format: 'If the title emphasizes X instead of Y, CTR rises, because the audience searches with intent Z'. 2. Create 3 challenger titles, each changing ONE variable (number, benefit, urgency, named audience). 3. Estimate how many impressions are needed for a minimally reliable conclusion, based on current CTR — and say how long that takes at the stated volume. 4. Define the decision criterion and what to do with the loser. 5. Alert to the risk: changing the title may temporarily drop ranking. Say when the test is not worth running. OUTPUT FORMAT Formal hypothesis | 3 challengers | Sample needed and timeline | Decision criterion | Risk. RESTRICTIONS - One variable per test. - Do not declare a winner with few impressions: CTR variation in small sample is noise.