A/B Test Brief Builder

I want to A/B test {{test_element}} on {{page_location}}. Current performance: {{current_metric}}. Hypothesis: {{hypothesis}}. Write an A/B test brief including:
1) Clear hypothesis (If X, then Y because Z)
2) Control and treatment variations (describe both)
3) Sample size and test duration recommendation
4) Primary and secondary success metrics
5) Statistical significance threshold
6) Success scenario and decision framework (if A wins, we...; if B wins, we...)