Effective Statistics, Inc.

Clifford Long

Owner & Principal Consultant


Statistician and Quality Professional passionate about helping companies that are willing and ready to obtain the most benefit from the information available in their data. Focused on the efficient use of resources and data that enables fact-based decisions that include measurement and understanding of uncertainty.

Expert knowledge and demonstrated leadership in implementing, maintaining, and improving quality management systems. Proven ability to manage resources, lead multi-functional areas, and foster relationships and teamwork across business functions and global facilities.


  • M.Sc. Statistics, DePaul University
  • MBA, Lake Forest Graduate School of Management
  • B.Sc. Electrical Engineering, Iowa State University

Professional Certifications

  • American Statistical Association (ASA) PStat®
  •  American Society for Quality (ASQ)
    • Certified Quality Engineer
    • Certified Quality Auditor
    • Certified Reliability Engineer
    • Certified Software Quality Engineer

Statistical areas of application

See Solutions


I have over 25 years of experience covering design, manufacturing, service, and quality systems in several industries, to include medical devices (FDA regulated), office equipment (mechanical, electrical, commercial), and distribution.

I have over fifteen years of experience using statistical methods to help companies solve problems, reduce costs, increase capacity, improve quality, and more.

I especially enjoy teaching others to become self-sufficient with these tools and methods, and have been doing so across the globe for over 20 years.

My teaching experience beyond the corporate environment also includes service as an Adjunct Professor for the DePaul University graduate program in applied statistics.

Business areas of application


Industrial Processes


Quality Systems

Quality and Reliability Engineering

Forecasting and Simulation for Demand Planning, Marketing and Sales

Data Mining, Machine Learning

For more information

LinkedIn profile

Examples of Past Work

American Statistical Association (ASA) profile