Webinar On Confidence / Reliability Calculations & Statistically Valid Sample Sizes

Event Details

Time: November 13, 2014 from 1pm to 2:30pm
Location: Online
Street: 5939 Candlebrook Ct
City/Town: Mississauga
Website or Map: https://compliancetrainings.c…
Phone: 4169154458
Event Type: webinar
Organized By: Compliance Trainings
Latest Activity: Oct 27, 2014

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Event Description

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 Process Capability calculations).

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").

Areas Covered in the Session :

The seminar begins with a discussion of relevant regulatory requirements, as motivation for calculating "confidence/reliability". Then, some vocabulary and basic concepts are discussed.

Next, 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, or non-normally distributed measurement data that cannot be transformed into normality. Spreadsheets are shown as examples of how to implement the methods described in the seminar. A final discussion is provided on how to introduce the methods into a company.

All the above is captured in these bullet points:

Regulatory Requirements

Vocabulary and Concepts

Attribute Data

Normal Data

Normal Probability Plotting

Non-Normal Data that can be normalized

Reliability Plotting (for data that cannot be normalized)

Implementation Recommendations

Who Will Benefit:

A must attend webinar for all

QA / QC Supervisors