Review Checklist Work through every section below before presenting findings to stakeholders. Data Foundation - [ ] Correct sources : Confirmed that the tables and datasets used are the appropriate ones for this question - [ ] Freshness : Data recency is sufficient; the "data as of" date is noted - [ ] Coverage : No unexpected time gaps or missing segments in the dataset - [ ] Null treatment : Null rates in critical columns have been reviewed; nulls are excluded, filled, or explicitly flagged - [ ] Duplicate control : Row counts confirm no double-counting from faulty joins or repeated source…