{
  "status": "Hypothetical planning assumptions; no enterprise measurements",
  "experiment": "E1 activation",
  "p0": 0.3,
  "p1": 0.35,
  "practical_threshold": 0.05,
  "decision_rule": "lower_bound_above_zero",
  "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,
    0.2,
    0.3
  ],
  "base_icc": 0.05,
  "size_cv_values": [
    1.0
  ],
  "attrition": 0.0,
  "cluster_sizes": "Equal and fixed before assignment in the ICC rows; one row lets account sizes vary with CV 1.0 around the same mean",
  "enrollment_weeks": 4,
  "activation_completion_days": 7,
  "reopen_observation_days": 7,
  "followup_days": 14,
  "operating_characteristic_gains": [
    0.0,
    0.025,
    0.05,
    0.075
  ],
  "estimate_rule_planning_gains": [
    0.06,
    0.07
  ],
  "variance": "Bernoulli p*(1-p); exchangeable within-account correlation; independent accounts",
  "mde_definition": "5 percentage points, not a 5 percent relative change; the practical threshold and the true gain the trial is sized to detect",
  "scope": "Normal approximation without continuity or small-cluster correction. No power claim for E2, E3 or guardrails."
}