Andrew Hayles

Transforming complex datasets into actionable business insights through advanced statistical modeling and data visualization. Proven track record in health analytics, database optimization, and predictive modeling. Please consider some of my recent projects below. Please note that careful checking has been performed on the output of the AI that was leveraged in certain instances for these projects.

Recent Projects

Personal Health Data Analysis

Analyzed personal health data and found correlations between sleep quality and cardiovascular health. Discovered statistically significant relationships using correlation analysis and statistical testing.

I.Q. Test Data Analysis

Comprehensive statistical analysis of 400+ cognitive assessment scores using Python and Power BI. Applied chi-square testing, regression analysis, and created interactive dashboards revealing performance patterns across test types and time periods.

Chess Database Analysis

Custom rating estimation system analyzing 2,569 chess positions using Stockfish engine. Applied chi-square testing (with correction factors) to identify performance patterns, discovering a lack of any statistical significance even in spite of seemingly apparent critical weaknesses in my opening performance.

Yelp Academic Dataset

Designed and implemented relational database for Yelp academic dataset. Analyzed 100,000+ reviews using SQL and Python to identify key differentiators between 5-star and 1-star businesses through sentiment analysis and statistical significance testing.