Statistics Features

Inderjit Arora's picture
Inderjit Arora
Objective auditing has always been a challenge, and this is especially true now for ISO 9001:2015 audits. To better meet customer expectations, fundamental changes have been introduced to the...
Greg Fox's picture
Greg Fox
Mind the gap. It’s is an important concept to bear in mind when traveling on the Tube in London, the T in Boston, the Metro in Washington, D.C., and other subways. But how many of us remember to...
NIST's picture
NIST
NIST scientists have devised and improved a prototype instrument the size of a loaf of bread that can substantially increase the accuracy of length measurements in commerce. Perhaps surprisingly, it...
Donald J. Wheeler's picture
Donald J. Wheeler
Here we look at a simple example to discover the commonalties of various data analysis techniques widely used in industry today. Careful consideration of the following may result in insights that...
Diane Lee's picture
Diane Lee
Like many of you, I venture out on Saturday mornings to get groceries and gas. Until my college years, I never thought much about whether or not I paid the right amount at the pump, if the...
Joel Smith's picture
Joel Smith
For the majority of my career with Minitab, I’ve had the opportunity to speak somewhat regularly at conferences and other events. I thought some of my talks were pretty good, and some were not so...
Eston Martz's picture
Eston Martz
If you want to convince someone that at least a basic understanding of statistics is an essential life skill, bring up the case of Lucia de Berk. Hers is a story that’s too awful to be true—except...
TÜV SÜD America's picture
TÜV SÜD America
The revised ISO 9001:2015 standard was published on Sept. 23, 2015. The release of this standard has many organizations preparing for the transition from ISO 9001:2008, and with transition...
Dan Nelson's picture
Dan Nelson
Have you ever noticed someone struggling with a problem because he didn’t know the “trick” to solving it? Have you ever wrestled with a problem, only to discover that it actually wasn’t a...
Arun Hariharan's picture
Arun Hariharan
Technology is a useful tool in quality. That said, there are limits to what technology can do. Here’s my summary of its advantages and disadvantages for quality professionals. 1. Data and...
Donald J. Wheeler's picture
Donald J. Wheeler
The Levey-Jennings chart was created in the 1950s to answer questions about the quality and consistency of measurement systems in the chemical and process industries. This column will illustrate...
Greg Fox's picture
Greg Fox
Unless you live under a rock, you’ve no doubt heard that the world recently lost David Bowie, one of the greatest artists of our time. My memories of the Thin White Duke go all the way back to...
Eston Martz's picture
Eston Martz
Not long ago, I couldn’t abide statistics. I respected the field, in much the same way a gazelle respects a lion. Most of my early experiences with statistics indicated that close encounters...
Donald J. Wheeler's picture
Donald J. Wheeler
One computation that modern software offers to unsuspecting users is the statistical tolerance interval. Since this sounds very much like limits for individual values, some have been tempted to use...
Fred Schenkelberg's picture
Fred Schenkelberg
The planning of environmental or reliability testing becomes a question of sample size at some point. It’s probably the most common question I hear as a reliability engineer: How many samples do we...
Davis Balestracci's picture
Davis Balestracci
“It is impossible to tell how widespread data torturing is. Like other forms of torture, it leaves no incriminating marks when done skillfully. And like other forms of torture, it may be difficult...
William A. Levinson's picture
William A. Levinson
The Shewhart control chart is relatively insensitive to non-normal distributions, and the worst foreseeable consequences of a wrong decision involve searching for an assignable or special cause...
Michelle Paret's picture
Michelle Paret
I have two young children, and I work full-time, so my adult TV time is about as rare as finding a Kardashian-free tabloid. So I can’t commit to just any TV show. It better be a good one. I was...
Davis Balestracci's picture
Davis Balestracci
“When I die, let it be in a meeting. The transition from life to death will be barely perceptible.” —Anonymous Today I’m going to share some ideas from an always-thoughtful newsletter written by...
Douglas C. Fair's picture
Douglas C. Fair
Sponsored Content Statistical process control (SPC) software has been around for decades, used by manufacturers across industries to help monitor process behavior and control quality on the shop...