{
  "citation": "statsmodels 0.15.0: the reference specification of stock_watson_caschool tab7_1_c2 (infer.ols, figure 'coef.str') on an independent code path",
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  "independent": true,
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  "kind": "software",
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  "licence": null,
  "locator": "stock_watson_caschool: Table 7.1 (class size and test scores), column (2), row 'Student-teacher ratio (X1)'; the regression adding the percentage of English learners",
  "metric": null,
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  "retrieved_at": "2026-10-15",
  "se": 0.4328471535415152,
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  "source_id": "stock_watson_caschool.tab7_1_c2.software",
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  "url": "https://pypi.org/project/statsmodels/0.15.0/",
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  "verified_by": "software_run",
  "verified_note": "sm.OLS(testscr, add_constant(['str', 'elpct'])).fit(cov_type='HC1') on caschool (the file pinned at sha256 644e606cd8ff21557375a091f744f623323bb84de99da616923a97942e4fe54b); n_obs = 420. The tool infer.ols (magi_infer, numpy) does not call statsmodels. Written by scripts/paper_repro_reference.py."
}