Confidence/Reliability Calculations of Product and Product Capability

John N Zorich

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$349


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In this webinar attendees will learn the specific easy-to-use formulas for calculating what % a population or process is "in-specification" (= % Reliability). This webinar focuses on explaining which formulas to use for what type of data, and when/how to perform transformations to normality prior to using such formulas.

Why Should You Attend:

This webinar focus the relevant vocabulary, basic concepts, best practices and the relevant regulatory requirements of confidence/reliability calculation.

Detailed descriptions are given for how to calculate confidence/reliability for data that is either pass/fail (i.e., "attribute" data), normally-distributed measurement data, non-normally distributed measurement data that can be transformed into normality, and the use of confidence limits on Cpk (the classic value calculated to quantitate process capability).

All manufacturing and development companies perform testing and/or inspections that involve concluding whether or not a product or lot is acceptable vs. design or QC specifications. Such test/inspections may occur during design verification/validation or during incoming or final QC.

The most informative method for analyzing the data that results from such activities is the calculation of the product's or lot's "reliability" at a chosen "confidence" level (where "reliability" means "in-specification"). Such a method produces information that is more valuable than simply that the given product or lot "passed" (as is the case when "AQL Attribute Sampling Plans" are used) or a % in-specification statement without any corresponding confidence statement (as is the case with AQL Variables Sampling Plans and with classic Process Capability calculations).

Areas Covered in the Webinar:

  • Regulatory Requirements
  • Vocabulary and Concepts
  • Process Capability Indices
  • Attribute Data
  • Normal Data
  • How to Evaluate for Normality
  • How to Transform Non-Normal Data into Normality
  • MTTB calculations

Who Will Benefit:

  • QA/QC Supervisor
  • Process Engineer
  • Manufacturing Engineer
  • QC/QC Technician
  • Manufacturing Technician
  • R&D Engineer

Topic Background:

The output of a "Confidence/Reliability" calculation is a definitive statement that the given product or lot has a specific % in-specification, which conclusion we can state with a specific level of confidence (e.g., 95% confidence of 99% reliability, or 90% confident of 93% reliability").

Webinar Events
Live -Coming soon!

Training CD-DVD

Physical CD-DVD of recorded session will be despatched after 72 hrs on completion of payment


Recorded video

Recorded video session



Speaker: John N Zorich , Statistical Consultant and Trainer, Statistical Consult

John Zorich has spent almost 40 years in the medical device manufacturing industry; the first 20 years were as a "regular" employee in the areas of R&D, Manufacturing, QA/QC, and Regulatory; the next 15 years were as a consultant in the areas of QA/QC and Statistics. These last few years were as a trainer and consultant in the area of Applied Statistics only. His consulting clients in the area of statistics have included numerous start-ups as well as large corporations such as Boston Scientific, Novellus, and Siemens Medical. His experience as an instructor in applied statistics includes having given annual 3-day seminars for many years at Ohlone College (San Jose CA), and previously having given that same course for several years for Silicon Valley ASQ Biomedical. He's given numerous statistical seminars at ASQ meetings and conferences. And he creates and sells validated statistical software programs that have been purchased by more than 110 companies, world-wide.


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