{
  "status": "Hypothetical planning assumptions; no enterprise measurements",
  "experiment": "E1 activation",
  "p0": 0.3,
  "p1": 0.35,
  "family_alpha": 0.05,
  "primary_hypotheses": 3,
  "power": 0.8,
  "allocation": "1:1 accounts",
  "users_per_account": 20,
  "icc_values": [
    0.0,
    0.05,
    0.1
  ],
  "base_icc": 0.05,
  "attrition": 0.0,
  "cluster_sizes": "equal and fixed before assignment",
  "enrollment_weeks": 4,
  "followup_days": 14,
  "variance": "Bernoulli p*(1-p); exchangeable within-account correlation; independent accounts",
  "mde_definition": "5 percentage points, not a 5 percent relative change",
  "scope": "Normal approximation without continuity or small-cluster correction. No power claim for E2, E3 or guardrails."
}