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Using Variance Analysis to Improve Root Cause Analysis Webinar


Product Description

  • On-Demand: Any Time

LENGTH: One Hour

Root cause analysis is typically performed because a process or a piece of equipment is not performing as desired. That is, there is a variance between what is expected and what is found. Finding the causes of that variance then involves trying to find what factors (among the many inputs and controls) are also varying from what is necessary to produce the desired output.

There are many different graphical tools for performing this variance analysis. Some are for measured data, some for count data, and still others for general information. Which tool is best is also dependent on the sample size and number of variables to be analyzed.

This one-hour webinar will demonstrate the use of several of these tools, including histograms, dot plots, multi-vari graphs, Pareto analysis, pivot tables, and Is/Is-not tables. The demonstration will include proper interpretation of when the factors being analyzed are and are not the likely cause.

Course Agenda

  • The concept of variance analysis
  • Variance analysis for variable data
  • Variance analysis for attribute data
  • Variance analysis for non-numeric information
  • Cautions about significance

What You Will Learn

  • How the concept of analysis of variance underlies all problem solving
  • How to analyze data in order to identify differences between  factors
  • How to conduct both single and multiple factor analyses


Viewers of the On-Demand webinar get:
  • Unlimited viewing of the webinar for one full year, including any updated versions


Duke Okes has conducted quality management training and consulting for industry since 1985, after having spent years as a quality engineer in the automotive industry. He has helped dozens of companies achieve registration to ISO 9001 and ISO/TS 16949, and trained thousands of internal quality auditors.
He is certified by ASQ as a CQA, CQE, CMQ/OE, and has published and presented more than two dozen articles/talks on quality audits for several publications and conferences, including a series in Paton Professional's The Auditor. He is the author of Root Cause Analysis: The Core of Problem Solving and Corrective Action and Performance Metrics: The Levers for Process Management.
After you register for this webinar, you will receive a confirmation e-mail containing a PDF file, which contains a link to view the session and other information. You will also receive an e-mail with a link to access the webinar.
We are so confident that you will find this webinar valuable that we offer a 100% money-back guarantee, making this a risk-free investment. If you are dissatisfied with the webinar, just let us know by phone or e-mail within 24 hours of the conclusion of the webinar for viewers of the live webinar and within 24 hours of your purchase of the On-Demand webinar and we will issue you a full refund.

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