Data Analyst | SQL, Excel & Tableau | Lagos, Nigeria
LinkedIn · reginaldidimoku@gmail.com
Cleaned 180 sales transactions for a skincare retail business and built a 3-part Tableau dashboard covering revenue trends, product performance, and customer behavior. Key finding: the best-selling product by units wasn't the top revenue earner.
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Cleaned and validated a 4-table hospital operations dataset — checked for nulls, duplicates, and data integrity issues, flagging one data quality concern.
Analyzed patient refusal patterns using SQL joins and aggregates — traced refusals to bed capacity constraints and tested (then ruled out) a staffing-related hypothesis.
Built an interactive Tableau dashboard visualizing patient refusal rates by service, based on findings from the SQL analysis.
Open to data cleaning and dashboard projects — one-time or ongoing, depending on what fits your business.