1{2 "task_id": "F6-dev-01",3 "analysis_year": 2023,4 "n_excluded_missing": 20,5 "baseline_metric": 7.07645404460588,6 "model_metric": 3.5949979094078177,7 "pearson_r": 0.8613437957840087,8 "r_squared": 0.7419131345356038,9 "effect_estimate": 5.267173451958655,10 "intercept": 22.56709274982858,11 "effect_se": 0.21067528691162227,12 "effect_ci_low": 4.854257477179233,13 "effect_ci_high": 5.6800894267380775,14 "conclusion": "positive_effect",15 "feasibility": "complete",16 "feasibility_reason": null,17 "data_issues": [18 {19 "issue": "wb_indicators.csv mixes countries/economies with 44 regional/income/other aggregates (region == 'Aggregates').",20 "handling": "All aggregate entities excluded before any computation, per TASK rules."21 },22 {23 "issue": "Some entity names carry trailing whitespace in wb_entities.csv (e.g. 'Latin America & Caribbean ', 'Sub-Saharan Africa ').",24 "handling": "Strings stripped; join is on iso3 so no effect on the analysis."25 },26 {27 "issue": "ISO3 code 'NAM' (Namibia) would be read as missing by pandas' default NA parsing.",28 "handling": "CSV read with keep_default_na=False and only empty strings treated as missing."29 },30 {31 "issue": "In 2023, 20 countries/economies lack an indicator (GDP pc PPP missing for: ASM, CHI, CUB, ERI, GIB, GUM, IMN, LIE, MAF, MCO, MNP, NCL, PRK, PYF, SSD, SYR, VEN, VGB, VIR, YEM; LE missing for 0). Missingness is non-random (small territories, conflict/sanctioned economies such as SSD, SYR, YEM, VEN, PRK, CUB, ERI).",32 "handling": "Listwise exclusion, no imputation, counted in n_excluded_missing; discussed as a selection threat."33 },34 {35 "issue": "Very large year-to-year swings in life expectancy for CAF, SSD (e.g. CAF 18.8 years in 2022 vs 57.4 in 2023; SSD 35-40 in 2015-2017), reflecting crisis-mortality estimates/revisions.",36 "handling": "Only 2023 values enter the estimate; CAF 2023 value kept (plausible); a sensitivity excluding CAF is reported in the report."37 }38 ],39 "n_input_rows": {40 "wb_indicators.csv": 2349,41 "wb_entities.csv": 29642 },43 "n_analysed": 197,44 "random_seed": 045}