1# Checks (P4)2| check | outcome |3|---|---|4| Clean re-run (deleted outputs) regenerates byte-identical results.json and analytic.csv | PASS |5| analytic.csv rows == n_analysed (1164) | PASS |6| sum(analytic price) == sum_price_valid; mean and median recomputed with pandas match | PASS |7| exclusion ledger: n_before − n_removed = n_after each row; chained; first n_before = 1200 data lines; last n_after = n_analysed | PASS |8| n_valid + n_unreadable == n_records_control (1164+36=1200) | PASS |9| per-municipality shortfall sums to 36 | PASS |10| sale_id unique in analytic set | PASS |11| mean within [min,max] price; implied unreadable mean (414,361) same order as valid mean (392,070) → plausible | PASS |12| sum_price_unreadable_implied > 0 | PASS |13