{
  "task_id": "F6-conf-01",
  "feasibility": "complete",
  "feasibility_reason": null,
  "data_issues": [
    {
      "issue": "215 rows with empty DGS10 (US market holidays incl. 2001-09-11/12)",
      "handling": "dropped before differencing, per TASK rules"
    },
    {
      "issue": "213 changes span a holiday (calendar gap 2 or 4 days), i.e. cover more than one trading session",
      "handling": "kept and attributed to weekday of t as the TASK prescribes; noted as a limitation"
    },
    {
      "issue": "extreme changes (e.g. -51 bp on 2009-03-18, -27 bp on 2008-09-15) during the 2008-09 crisis",
      "handling": "kept (genuine market events); no outlier trimming; discussed as limitation"
    },
    {
      "issue": "yields quoted to 0.01 percentage point, so changes are discretised at 1 bp",
      "handling": "none needed; noted"
    }
  ],
  "n_input_rows": {
    "DGS10.csv": 5217
  },
  "n_analysed": 5001,
  "random_seed": null,
  "n_missing_rows": 215,
  "n_train": 2500,
  "n_test": 2501,
  "anova_f_stat": 0.26346571680712,
  "anova_p_value": 0.9015060507654888,
  "effect_estimate": 0.05017009840169966,
  "effect_ci_low": -0.319335775694099,
  "effect_ci_high": 0.41967597249749833,
  "baseline_metric": 4.875704154642543,
  "model_metric": 4.883841522290305,
  "conclusion": "no_detectable_effect",
  "effect_se_welch": 0.18837955539096202,
  "effect_df_welch": 1548.9581965107568,
  "train_weekday_means_bp": {
    "Monday": -0.05434782608695535,
    "Tuesday": -0.40545808966861635,
    "Wednesday": -0.20542635658914643,
    "Thursday": 0.013833992094862349,
    "Friday": 0.11683168316831462
  },
  "rmse_ratio_model_over_baseline": 1.0016689625518016,
  "robust_kruskal_wallis_p": 0.47102318097227847,
  "robust_levene_p": 1.0122651168712971e-07,
  "robust_effect_ci_hc1": [
    -0.3189570734770597,
    0.4192972702804604
  ],
  "robust_effect_ci_nw5": [
    -0.3292803583071403,
    0.429620555110541
  ],
  "robust_anova_p_excl_crisis_2008_09_to_2009_06": 0.5883921797034571,
  "n_excl_crisis": 4794
}