{
  "task_id": "F6-conf-01",
  "n_missing_rows": 215,
  "n_train": 2500,
  "n_test": 2501,
  "anova_f_stat": 0.263465716807118,
  "anova_p_value": 0.9015060507654888,
  "effect_estimate": 0.050170098401698796,
  "effect_ci_low": -0.31933577569409977,
  "effect_ci_high": 0.41967597249749733,
  "baseline_metric": 4.875704154642544,
  "model_metric": 4.883841522290305,
  "conclusion": "no_detectable_effect",
  "feasibility": "complete",
  "feasibility_reason": null,
  "data_issues": [
    {
      "issue": "215 rows with empty DGS10 field (US market holidays)",
      "handling": "dropped before differencing, as required by TASK"
    },
    {
      "issue": "214 changes span a holiday (calendar gap longer than normal: > 3 days for Monday, > 1 day otherwise), e.g. Tuesday after a Monday holiday covers two trading sessions' worth of calendar time",
      "handling": "kept and attributed to the weekday of t per TASK rule; noted as a limitation"
    }
  ],
  "n_input_rows": {
    "DGS10.csv": 5217
  },
  "n_analysed": 5001,
  "random_seed": null,
  "supplementary": {
    "effect_method": "Welch two-sample t interval (Monday vs other weekdays, all changes)",
    "effect_se": 0.18837955539096196,
    "effect_welch_df": 1548.9581965107577,
    "effect_welch_p_value": 0.7900247217974709,
    "n_monday": 919,
    "n_other": 4082,
    "train_weekday_means_bp": {
      "Monday": -0.05434782608695652,
      "Tuesday": -0.40545808966861596,
      "Wednesday": -0.2054263565891473,
      "Thursday": 0.01383399209486166,
      "Friday": 0.11683168316831684
    },
    "rmse_ratio_model_over_baseline": 1.0016689625518014,
    "dm_stat_sqloss_positive_favours_weekday": -1.8573748978469748,
    "dm_p_value": 0.06325783524850241,
    "rmse_test_train_unconditional_mean": 4.8751986528852305,
    "n_changes_spanning_holiday_gap": 214,
    "n_available_obs": 5002
  }
}