Standards and Statistics



Standards And Statistics

What Do We Mean by “Zero Defects”?

Part 2 of 3: Non-Conformities When Sampling a Continuum
Q: How do we handle zero defects or non- conformities when sampling a continuum? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

The Intermediate Precision of ASTM International Test Methods

How to Use, Measure and Control IP
Q: What is the intermediate precision of a test method? How is it measured and used? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

What Is the Proper ASTM ILS Design?

The Benefits of E691
Q: ASTM International standard E691, Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method, recommends a... more
Industry Sectors: 
Quality


Standards And Statistics

What Are Z-Scores?

A Simple but Useful Statistical Computation
Q: What exactly are z-scores and how are these statistics used in practice? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Statistical Intervals

Part 1: The Confidence Interval
Q: What is a confidence interval? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Testing for Outliers

Practical and Philosophical Considerations
Q: How can you test for an outlier, and Is there an ASTM standard for this practice? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Understanding Process Capability

The Difference Between Capability and Control
Q: What do we mean by the capability of a process? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Statistical Intervals

Part 3: More on the Tolerance Interval
Q: What is a tolerance interval? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Statistical Intervals

Part 2: The Prediction Interval
Q: What is a prediction interval? Click here to download the full article... more
Industry Sectors: 
Quality


Standards And Statistics

Testing for Randomness

The Mean Successive Difference Test
Q: How can I tell if my data are random —or not? Click here to download the full article... more
Industry Sectors: 
Quality

Pages