statistics
The Perils of Polling: Statistical Universes, Non-Sampling Errors & Market Analysis Blunders [Most Popular]
June 11 by PEX Network EditorialEditor's Note: "The results of polls/sample surveys" are hotly debated these days by political strategists, business' friends and critics, in management seminars, and in marketing journals. Of l...
Case study: Reducing customer information database errors
June 20 by Marcelo GrimaldiAny business school will tell you that watching your cash flow is one of the most important things you can do to make sure you stay in business. You need to keep an eye on the payments coming in and t...
Design of Experiments - underutilized and unloved?
May 15 by Process Excellence NetworkExperimentation may conjure up images of mad scientists in labs hunched over strange concoctions - but it’s not just for scientists. Most of the world’s leading companies run experiment...
The Perils of Polling (Can it Really Tell Us Who Will Win the American Presidential Election?)
September 12 by Process Excellence NetworkMore than 100 years ago H.G. Wells said: "Statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write." Polling of public opinion has become an ind...
Is Big Data the New Six Sigma?
March 29 by Process Excellence NetworkWhy Big Data Needs Process Professionals Every day the world creates 2.5 quintillion bytes of data, according to figures from IBM. That’s a lot of data. It means that 90 percent of the data...
The Insider's Guide to Using Histograms
December 02 by Steven BonacorsiWant to understand variation within a process at a glance? Look no further than a histogram. Contributor Steve Bonacorsi explains everything you ever wanted to know about this statistical tool but pro...
Variation, So Meaningful Yet So Misunderstood - Deming's SoPK Part III
September 06 by Lynda M. FinnWhen businesses use the wrong data or don't recognize the different types of variation, the resulting decisions and actions tend to increase costs, reduce quality, reduce productivity, and foster fr...
Minitab Case Study: Design of Experiments
March 28 by Process Excellence Network EditorCase study of how Metalor Technologies, a precious metals and advanced materials supplier, used the Design of Experiment (DOE) tools in Minitab to determine how density and surface area were affecte...
Would Deming's Phone Still Ring Today?
March 07 by Kelly AllanOn June 24th 1980 the National Broadcasting Company (NBC) broadcast a white paper documentary in the United States entitled, "If Japan Can, Why Can’t We?" The Japanese quality revolution had b...
Making Sense of Regression Analysis
March 01 by Khwaja MoinuddinRegression analysis is a very good tool to model the relationship between predictors (Xs) and the response (Y). We have to be careful of high multi-collinearity among predictors, autocorrelation among...
Driving Out Fear and Other Similarities Between Drucker and Deming
February 21 by Kelly AllanIt won’t surprise you that W. Edwards Deming, renowned statistician and management expert, and Peter F. Drucker, the father of modern management thinking, knew one another. What might surpris...
Bayes Theorem of Conditional Probability and the Ambiguity of Data
December 08 by Phil MercyIf it walks like a duck and quacks like a duck, is it possible it's not a duck? In this article, guest contributor Phil Mercy, a Six Sigma Master Black Belt working for Motorola Solutions in the UK,...