[
 {"id": "C1", "text": "Memo's claim: the slope of y on x is statistically significant at the 5% level.", "results_keys": ["memo_claim_supported", "p_hac", "t_hac", "beta_ci_low", "beta_ci_high"], "status": "unsupported", "caveat": "Not significant with HAC SE (p=0.119); 'not significant' is not evidence of a zero effect."},
 {"id": "C2", "text": "The memo's point estimates and iid inference are reproduced exactly (beta 0.1017, se 0.0448, t 2.27, p 0.0238).", "results_keys": ["beta_hat", "alpha_hat", "se_iid", "t_iid", "p_iid"], "status": "supported", "caveat": "iid SE is invalid under the serially correlated errors."},
 {"id": "C3", "text": "OLS residuals are strongly positively autocorrelated (rho about 0.61), so iid SEs understate uncertainty; the HAC SE is about 1.46 times the iid SE.", "results_keys": ["rho_resid", "se_hac", "se_iid"], "status": "supported", "caveat": "Sample rho is downward biased relative to the stated DGP value of about 0.7."},
 {"id": "C4", "text": "The non-significance verdict is robust to bandwidth choice (p between 0.096 and 0.125 for 5–36 lags).", "results_keys": ["hac_lags", "se_hac_nw1994_rule", "sensitivity_min_p", "sensitivity_max_p"], "status": "supported", "caveat": "Asymptotic normal reference; fixed-b inference not computed."}
]