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Mario Alberto A.
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Mario Alberto A.

Statistician | Data Scientist | Econometrics | Stata, R, Python, SQL

I am a Statistical Consultant and MS Statistics student at UC Davis. I also received a B.S. in Applied Mathematics/Economics and a Minor in Business Analytics from the University of California, Riverside. 🏆 Elite Credibility: My coauthored research has been selected for presentation at premier national conferences, including: 1️⃣ 2025 Association for Public Policy Analysis & Management (APPAM), Seattle, Washington 2️⃣ 2025 Population Association of America (PAA), Washington, D.C. 📈 Specialized Statistical Services: I leverage R, Stata, and Python to solve complex causal and predictive problems: ✅ Descriptive Regression Analysis: Linear/nonlinear regression, probability modeling (LPM, logistic), ANOVA (One-Way, Two-way, Random / Fixed / Mixed Effects) ✅ Causal Inference: Difference-in-Differences (DiD), Instrumental Variables (IV), and Panel Data (Random / Fixed / Mixed Effects) ✅ Predictive Modeling: Machine Learning (Gradient Boosted Trees, Random Forest, KNN) ✅ Survey Methodology: Expert population weighting, clustering, and post-stratification ✅ Statistical Tests: A/B tests, T-tests, Chi-squared Tests, Hausman test, etc. Some Projects: 1️⃣ Github Website (with an interactive dashboard using PostgresSQL and Python, portfolio, and other webpages on reproducible research) 2️⃣ Regression Analysis of Airbnb prices in Mexico 3️⃣ Regression Analysis of H-1B sponsor rates by industry type and location In a year-long data analytics intern position, I: 1️⃣ Created and implemented a database into our center's initiative on analyzing academic technology usage. 2️⃣ Reached out to technology vendors of the university, requesting data extracts and communicating with them on the interpretation of data. 3️⃣ Streamlined data collection, and organized all data into a database that is still used at the center. 4️⃣ I cleaned and prepared several spreadsheets with hundreds of thousands of rows within Google Sheets, and provided key metrics through dashboards and reports in Google Looker Studio. 5️⃣ I connected this data and made it accessible through Slack. I reported on my progress through Slack, Asana, and Zoom meetings (disseminating findings through bi-weekly meetings). 6️⃣ I implemented data governance policies and facilitated meetings on data governance. 7️⃣ I wrote, recorded, and hosted trainings for my colleagues in Looker Studio. 8️⃣ Providing data-driven insights through story-telling. 🛠 Technical Toolkit: Languages: R, Python , SQL (PostgreSQL), Stata. Visualization: Plotly, ggplot, Looker Studio

🇺🇸Davis, United States$40/hr100% JSS5.00 (9)Since Jun 2023

Earnings and projects

MRR
$238

Last 6 months ÷ 6

World#107,148 / 412k
🇺🇸Country#15,129 / 62.1k
Revenue, last 30 days
$263

Last 6 months: $1.4k

World#76,964 / 412k
🇺🇸Country#9,810 / 62.1k
Total earnings
$6.9k

Billed in all: $7.3k

World#227,465 / 412k
🇺🇸Country#36,052 / 62.1k
Per project
$276

$204 in the last 6 months

World#238,380 / 412k
🇺🇸Country#38,535 / 62.1k
Projects, last 6 months
7

Across 8 contracts

38% fixed62% hourly
World#28,826 / 412k
🇺🇸Country#4,152 / 62.1k
Projects in all
25

Across 32 contracts

63% fixed37% hourly
World#113,042 / 412k
🇺🇸Country#16,598 / 62.1k

Earnings, last 30 days

$7.3k+$263 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$7.0k$7.2k$7.4kOct 8Oct 23Nov 7

Skill rankings: Top 16% in Stata

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