Hire the Best Statistical Process Control (SPC) Professionals

Do you need someone who can handle your entire data journey? From collecting data, to analysing it, to automating the processes around it, and finally presenting it in a stunning, interactive dashboard? You've found that person. I'm Catherine, a data analyst and statistician with deep expertise across the full data pipeline. I don't just run numbers. I help you collect, clean, analyse, automate, and visualise your data in a way that drives real decisions. What I bring to your project: 📊 Statistical analysis & research: Hypothesis testing, regression, SEM, survival analysis, psychometrics/scale validation, and econometric modelling using SPSS, R, Stata, Python, Jamovi, and JMP. I've contributed to peer-reviewed journal publications through my statistical work on surgical databases (NSQIP). 🔍 Qualitative research: Thematic and content analysis using NVivo, MAXQDA, and Atlas.ti for interviews, focus groups, and open-ended survey data. ⚙️ Automation & workflow design: I build end-to-end automated pipelines using Make and Google Apps Script, including integrations with Stripe, Google Forms, Google Sheets, landing pages, and more. Recent clients have seen their manual data workflows fully automated. 📈 Dashboards & data visualisation: Interactive executive dashboards in Power BI and Looker Studio, tailored for marketing teams, operations, healthcare, and finance. I turn raw data into clear, compelling visual stories. 📋 Survey design & data collection: End-to-end survey projects using Google Forms, Typeform, and Qualtrics, including automated data pipelines from form submission to clean, analysis-ready datasets. I've worked across yachting, healthcare, finance, and academia, and I also offer tutoring in SPSS, R, and Stata for students and professionals. Let's talk about how I can support your project.

Do you need accurate, actionable insights from your survey, research, or business data to make informed decisions through powerful statistical and data science analysis? Look no further! I am a top-rated and full-time research data analyst with >8 years of experience in IBM SPSS, R, Python, SAS, STATA, NVIVO, JMP, JASP, Atlas.ti, Excel/Google Sheets. As a statistics wiz, survey expert, and data science practitioner, my areas of expertise include: ⭐️ Questionnaire/survey design & validation ⭐️ Survey & research data analysis: descriptive, inferential (Chi-Square, regression, correlation, t-test, ANOVA, etc.), predictive modeling ⭐️ Detailed interpretation & storytelling of results ⭐️ Report writing, academic formatting (APA, Harvard), and publication-ready outputs ⭐️ Advanced automation & scripting for reproducible workflows I provide a variety of services including but not limited to: ★ Sample size calculations ★ Correlation, regression, & multivariate analysis ★ Hypothesis testing & statistical modeling ★ Factor analysis (EFA/CFA), structural equation modeling ★ Predictive analytics & data visualization ▶︎ and much more My specializations: Health Research & Predictive Analysis Master's/Ph.D. Thesis & Dissertation Modeling Company Survey & Performance Analytics Social, Economic & Behavioral Data Science Projects What clients say 👉👉👉 ☆☆☆☆☆ "She is always of great help, and the turnaround time is on point. I can depend on her for assistance and explaining the work thoroughly." "Great work. Amazing communication and delivered the project on time." "Esther's results were clear, organized, and thoroughly explained. Excellent work! I'm so impressed! I appreciate her efforts and insight to the analysis of the project!" ☆☆☆☆ ✍️ Feel free to get in touch, and we can discuss your project further

🏆 TOP RATED ON UPWORK |⭐ 5-Star Ratings | Data Analysis and Statistical Modeling, ✅ Statistics, ✅ Survey Data Analysis, ✅ SPSS Statistical Analysis, ✅ Biostatistics Help. I am Statistician & Biostatistician with 8 years of experience in Statistical Data Analysis. I have helped clinical researchers, PhD and MSc researchers, DNP project, and business owners. My expertise includes working with datasets from surveys, clinical studies, and public databases like NHANES, CDC, DHS, and IPUMS. My Services: - Linear, Logistic, and Multinomial Regression Analysis - Repeated Measures ANOVA and Mixed Effects Models - Survival Analysis (Cox PH, Kaplan-Meier) - Survey Data Analysis (SurveyMonkey) - Structural Equation Modeling (SEM) and Confirmatory Factor Analysis (CFA) - Longitudinal Data Analysis and Multilevel Modeling - Latent Class Analysis using R or STATA - Power Analysis and Sample Size Calculation - Missing Data Imputation (MICE) Software Proficiency: ✅ R, RStudio, ✅ IBM SPSS, Stata, SAS ✅ Python ✅ Excel With a Master's degree in Statistics, specializing in Biostatistics, and over 8 years of experience, I have completed more than 200 projects on Upwork, achieving a 96% job success score and an average rating of 4.8. My analyses have contributed to successful journal publications, DNP projects, and strategic business decisions. Ready to start? Send me your dataset or a brief description of your project. Thank you, Daniel

As a certified psychometrician and statistics expert, I’m passionate about understanding human behavior by helping individuals and organizations make better decisions through psychometric testing, behavioral assessments, and data-driven insights. What I love most is the journey of working side-by-side with you, using data-driven insights to help you maintain the reliability and validate the tools to navigate any test development challenges. With timely updates and unwavering support, I'll help you leverage the test to achieve your project goals. Areas I specialize in: ✔ Writing effective questionnaires and designing surveys ✔ Designing and validating psychometric tests ✔ Analyzing research surveys and turning data into insights ✔ Creating corporate competency and workplace assessments ✔ Building creative and gamified tests ✔ Developing behavioral profiles for individuals and teams ✔ Running data analysis to ensure test reliability and validity Everyone has the potential to grow. I would love to collaborate with you to build better workplaces and meaningful assessments. If you have a project in mind, let’s talk! I offer a free 15-minute introductory meeting to see if we’re a good fit.

4 years of experience as a freelance statistician & econometrician & 10 years of teaching with a strong background in data analysis, visualization, and interpretation. - MPhil in Statistics & Research from IQRA university in Pakistan - Freelance statistician helping clients extract insights using SPSS, R, Stata, Excel, and a strong foundation in Python and Amos. - Have massive experience in handling data pulling, manipulating, processing, building models, and survey data, time series and panel data modelling -Let's bring something fruitful from your data and get rid of the headache of data.

I help businesses reduce costs, eliminate waste, and boost efficiency through Lean and Six Sigma methods. With 40+ years in manufacturing engineering and operations, I’ve led projects that improved quality, accelerated throughput, and saved clients millions. I have also created course material and taught numerous Green Belt/ Black Six Sigma, Excel, Minitab, Design of Experiments and other statistical software classes. If you’re struggling with delays, bottlenecks, or high defect rates, I can help you identify root causes, implement sustainable improvements, and deliver measurable ROI. If you need to take your career to a next level, I'm here to provide training and 1:1 hands on assistance. What I Offer: - Process Optimization & Lean Implementation – streamline workflows, reduce cycle time, and remove bottlenecks - Six Sigma Projects (DMAIC / DMADV) – data-driven problem solving, defect reduction, and process capability improvement - Training & Coaching – teach and mentor teams in Lean, Six Sigma, and problem-solving methods - Root Cause Analysis – identify and eliminate recurring issues that impact cost, quality, or delivery - KPI Development & Dashboards – define metrics that matter, and track improvements with clear visuals - Operational Excellence Audits – evaluate current processes and design a roadmap to improvement Why Clients Choose Me: - Certified Six Sigma Black Belt with hands-on industry experience (not just theory) - 40+ years of proven results in manufacturing, engineering, and operations - Strong communicator who adapts complex methods into practical steps for your team - Focused on measurable results: cycle time, yield, cost savings, customer satisfaction Let’s Work Together: If you need to fix broken processes, boost efficiency, or hit aggressive business goals, I can help. Message me today to discuss your project—I’m ready to help you deliver results.