Lean production is built on the explicit assumption that each step is operated predictably and capably.

Given the complexities of healthcare, do basic statistics used to rank hospitals really work well? A study co-authored by MIT economists indicates that some fundamental metrics do, in fact, provide real insight about hospital quality.

Short Run SPC, Part 1 and Part 2 showed how to use zed charts and difference charts to tr

Editor’s note: The following browsable offering from Davis Balestracci represents a good chunk of his knowledge base.

Lean production is built on the explicit assumption that each step is operated predictably and capably. Predictable operation can only be achieved and maintained by using process behavior charts.

What a year.

As usual with Quality Digest’s diverse audience, this year’s top stories covered a wide range of topics applicable to quality professionals. From hardware to software, from standards to risk management, from China trade to FDA regulations.

Lean production is built on the explicit assumption that each step is operated predictably and capably. Predictable operation can only be achieved and maintained by using process behavior charts.

It has been a while since I have written about statistics, and I get asked a lot about a way to calculate sample sizes based on reliability and confidence levels.

In the past two months we have looked at how three-sigma limits work with skewed data.