# Verification checks (P4) - Clean re-run of analysis.py reproduced results.json byte-identically: PASS - lstsq cross-check of closed-form OLS slope on replication 0 (assert in script): PASS - bias_mc == rho_hat_mean - 0.8: PASS - bias_mc_se == sd/sqrt(R): PASS - bias_analytical == -(1+2.4)/30: PASS - se_asymptotic == sqrt(0.36/30): PASS - discrepancy identity: PASS - SEs positive: PASS - CI contains estimate: PASS - n_analysed + excluded == R: PASS - bias sign negative & same order as analytical: PASS