Statistics Features

Jeffrey Phillips's picture
Jeffrey Phillips
Throughout human history we’ve constantly sought out tools and capital to make us more productive. From the formation of basic tools to assist in farming to real cultivation and shaping of the...
Donald J. Wheeler's picture
Donald J. Wheeler
In May 2019, James Beagle and I published an article that contained tables for the analysis of mean moving ranges or ANOMmR (pronounced a-nom-m-r). By request of those using this technique, I...
Donald J. Wheeler's picture
Donald J. Wheeler
The daily Covid-19 pandemic values tell us how things have changed from yesterday, and give us the current totals, but they are difficult to understand simply because they are only a small piece of...
Taran March @ Quality Digest's picture
Taran March @ Quality Digest
What is quality intelligence, exactly? It’s more than marketing spin. More, even, than the sum of its many control charts. It’s not collecting data simply to further go/no-go actions. And it doesn’t...
Ryan E. Day's picture
Ryan E. Day
An organization can achieve great results when everyone is working together, looking at the same information generated from the same data, and using the same rules. Changes can be made that affect a...
Dirk Dusharme @ Quality Digest's picture
Dirk Dusharme @ Quality Digest
Blame it on Moore’s law. We live in a digital Pangaea, a world of borderless data driven by technology, and the speed and density with which data can be transmitted and handled. It’s a world in which...
Ryan E. Day's picture
Ryan E. Day
It’s no secret that manufacturing companies operate in an inherently unstable environment. Every operational weakness poses a risk to efficiency, quality, and ultimately, to profitability. All too...
Eric Weisbrod's picture
Eric Weisbrod
For nearly a century, statistical process control (SPC) has been the cornerstone of quality management and process control. But traditional SPC can’t keep up as the pace of manufacturing accelerates...
Puerto Rico Manufacturing Extension's picture
Puerto Rico Manufacturing Extension
El-Com Systems Corp. is a wholly-owned subsidiary of El-COM Systems Solutions based in California. The local company has been in Puerto Rico since 2016 operating in Caguas. The company is dedicated...
Paul Laughlin's picture
Paul Laughlin
One of the most practical data visualization books for my clients is Storytelling With Data (Wiley, 2015). So, this is a longer-than-usual book review of this modern classic. I say that because it...
Donald J. Wheeler's picture
Donald J. Wheeler
Setting the process aim is a key element in the short production runs that characterize the lean production of multiple products. Last month in part one we looked at how to use a target-centered XmR...
Gleb Tsipursky's picture
Gleb Tsipursky
So many companies are shifting their employees to working from home to address the Covid-19 coronavirus pandemic. Yet they’re not considering the potential quality disasters that can occur as a...
Jason Chester's picture
Jason Chester
During the last several decades, many forward-thinking manufacturers have adopted factory automation for all that it promises—greater efficiency, consistency, productivity, and cost savings. In fact...
Donald J. Wheeler's picture
Donald J. Wheeler
Lean production of multiple products is built on the assumption that the process aim can be properly set for each short production run. This article will describe how to set the process aim so that...
Jay Arthur—The KnowWare Man's picture
Jay Arthur—The KnowWare Man
Story update 5/6/2020: The charts and some data have been updated to reflect the data available on the date this article was published. During the Covid-19 stay-at-home order in Colorado, I've become...
Donald J. Wheeler's picture
Donald J. Wheeler
Each day we receive data that seek to quantify the Covid-19 pandemic. These daily values tell us how things have changed from yesterday, and give us the current totals, but they are difficult to...
William A. Levinson's picture
William A. Levinson
The phrase “flatten the curve” means to slow the transmission of the coronavirus (Covid-19) in order to spread the total number of cases out over a longer period of time. This will avoid overwhelming...
Donald J. Wheeler's picture
Donald J. Wheeler
This article is an update to “Tracking Covid-19” that Al Pfadt, Kathryn Whyte, and I wrote last week. In that article we summarized what is known about Covid-19, what has already happened, and...
Donald J. Wheeler's picture
Donald J. Wheeler
Based on the professional literature available, there are some inconvenient truths about Covid-19 that are not always considered in the chorus of confusion that exists today. Here we summarize...
Donald J. Wheeler's picture
Donald J. Wheeler
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....