Marzianie B.

Hello, I am a seasoned Data Analyst with over 8 years of experience turning raw data into actionable insights. I have supported businesses, researchers, and doctoral scholars worldwide in analyzing qualitative and quantitative data using a variety of tools, including Stata, SPSS, R, Python, EViews, Power BI, Excel, and more. With a unique combination of domain expertise in business and science, coupled with strong statistical acumen, I specialize in unraveling complex datasets to uncover hidden patterns and trends. I deliver actionable insights through predictive and explanatory models that empower informed decision-making. ► My Services Include: ✔️ Statistical Analysis (R / SPSS / STATA / EViews): Descriptive Statistics: Means, medians, standard deviations, frequency distributions, and cross-tabulations. Hypothesis Testing: T-tests, Chi-square tests, and ANOVA (ANOVA/ANCOVA/MANOVA). Regression Analysis: Linear and logistic regression models. Time Series Analysis: Trend analysis, seasonality, and forecasting. Multivariate Analysis: PCA, factor analysis, and cluster analysis. Econometric Analysis: VAR, VECM, and panel data analysis. ✔️ Power BI Reporting: Extracting and transforming data from diverse sources (APIs, Excel, SQL servers, etc.). Cleaning datasets using Power Query for seamless analysis. Establishing data model relationships and crafting DAX measures. Creating interactive dashboards and user-friendly interfaces. Designing visually engaging reports for business intelligence. ✔️ Data Visualization: Building insightful visualizations such as histograms, scatter plots, box plots, heatmaps, and dendrograms. ✔️ Reporting and Documentation: Providing detailed statistical reports with comprehensive analysis and clear visualizations tailored to your needs. Delivering insights in actionable formats to enhance practical decision-making.