Duration calculation

Four sample-size inputs acknowledged

60-day threshold applied

4-8 week maximum flag

Increase MDE alternative

Combine or redirect traffic alternative

Qualitative / no-test alternative

Lower confidence alternative

Sequential testing tools named

Underpowered test mistake identified

Clear recommendation

Hypothesis structure

Primary metric defined

Secondary metrics present

Guardrail metrics present

Duration formula applied

B2B minimum duration rule

Maximum duration guideline

Quick decision framework applied

Pre-launch checklist present

Template section structure

Product-marketing context check