TNI Logo The NELAC Institute

Basic Statistics for Environmental Laboratories

Course Description:

This seminar provides an introduction to basic statistical concepts and techniques used for the collection, organization, analysis, and presentation of various types of laboratory data, including how to assess the relationship between two variables and methods for calculation and evaluation of measurement performance indicators in an environmental laboratory.

Expected Learning Outcomes:

  • Understand numerical and categorical types of data in the laboratory
  • Understand the terms population, batch, sample, sampling methods, and bias type and direction
  • Understand and be able to calculate relative error, relative standard error, %RSD, % recovery, control limits, and percent differences in calibration curves
  • Understand sample data distributions
  • Be able to use linear regression to create a least-squares line and calculate the correlation between two numerical variables in a data set
  • Understand and be able to perform hypothesis testing, outlier tests, and t-tests to show statistical differences between results
  • Significant figures and rounding
  • Be able to graphically represent and interpret laboratory data

Intended Audience:

This course is designed for Laboratory management (Laboratory Director/Technical Manager/Quality Assurance Manager), supervisors, and key laboratory staff.


$165 for TNI members
$180 for non-members

Group rates are available: Each purchased webcast is to be viewed by only one student. If you would like multiple viewers, separate purchases must be made. A group rate of $800 for TNI members or $875 for non-members is available for groups of 5-10 students at a single location. Click here to purchase this webcast at the group rate.

TNI Members: you must be logged-in to the website to receive the member rate.

No certificates are automatically provided with this training. A Certificate of Completion (CoC) ($30 per person) or Certificate of Attendance (CoA) ($20 per person) may be purchased during or after registration or webcast purchase. A passing score of at least 70% must be received on the exam in order to receive CEUs and a CoC. Scores of less than 70% will receive a Certificate of Attendance at no reduced fee. For a CoA you will not need to take the quiz and you will not receive CEUs. To receive your certificate, contact Paul Junio at [email protected] with date of purchase and date of training completion. See FAQs for additional information.


About Webcasts: Upon receipt of your payment, you will receive a special link by e-mail to watch the webcast on your computer. The link is time-limited: you will have full access to the webcast and any associated handouts for 6 months after receipt of payment, at which time the link will expire. Webcasts cannot be downloaded; they are intended for viewing on your computer only during the 6-month window. If you have any questions, please contact Ilona Taunton at [email protected].

8 hours

CEUs: 0.8

Presented By:

Tony Francis

About the Presenter:

Tony Francis received his PhD in chemistry from the University of Utah followed by a post-doctoral appointment at Los Alamos National Laboratory. He then owned and operated a commercial laboratory in Las Vegas, NV for many years. Dr. Francis has taught several introductory and advanced biology and chemistry at Salt Lake Community College, the University of Utah, the University of New Mexico, the College of Southern Nevada, and Utah Valley University. He has delivered many Data Integrity and Ethics training courses to laboratories across the United States. He has created and delivered many online training webinars covering many aspects of quality systems, most recently for IAS.Tony is currently the Lead Assessor for SAW Environmental performing 40+ assessments per year for TCEQ, FDOH, IAS, and A2LA.