Standards and Statistics


Standards and Statistics

Precision in ASTM Test Methods

What precision means in ASTM test methods.... more


Standards and Statistics

GESD

A look at a robust and effective technique for dealing with multiple outliers.... more


Standards and Statistics

Combining Results

How to combine the results of two samples that are statistically alike when the original data is unavailable.... more


Standards and Statistics

Inspection Redundancy: Part 2

A further look at inspection redundancy considers inspections at different locations with different devices and personnel.... more


Standards and Statistics

Inspection Redundancy

What is the purpose of multiple or redundant inspections?... more


Standards and Statistics

Can a Moving Average of the Data Be Deceptive?

Sometimes I want to take a
moving average of my data to
reduce the noise I am seeing, but
can I actually fool myself?... more


Standards and Statistics

Assessing Crack Detection Capability

What statistical procedure is used to determine the typical crack size that can be detected with a given probability?... more


Standards and Statistics

Easy Estimation of Measurement Uncertainty

How can we easily obtain an estimate of measurement uncertainty?... more


Standards and Statistics

Testing for Equivalence

What statistical procedures are used to demonstrate that two sets of test results are equivalent?... more


Standards and Statistics

Quantile Estimation

Q. Which method of quantile estimation should be used? ... more

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