Library
Newsletter Archive - full copies of past Division newsletters
Statistics Body of Knowledge - our library content below focuses on the topics in this listing.
Understanding Data Differences Equals Making Better Decisions
September 2011 Webinar
This basic, introductory webinar uses everyday data from real life to discern which differences matter: how to detect them, how to interpret them, and how to use them for process improvement...
- Filetype: pdf
- Publish date: 2011-09
- Keywords:Control charts, Control limits, Histogram, I and MR chart, Shewhart chart, Special cause, Common cause, Statistical process control, Variability

Just What Does an EWMA Do (Part 2)?
Mini Paper Taken from the Fall 1995 Newsletter
This paper extends the discussion of EWMA charts presented in the previous newsletter and compares their use with traditional Shewhart control charts...
- Filetype: pdf
- Publish date: 1995-10
- Keywords:Exponentially Weighted Moving Averages (EWMA), Control charts, Shewhart chart, Average run length (ARL), Statistical process control, Automatic process control, Autocorrelation, Variogram

Just What Does an EWMA Do?
Mini Paper Taken from the Summer 1995 Newsletter
This paper describes EWMA charts and compares their use and characteristics with traditional Shewhart control charts...
- Filetype: pdf
- Publish date: 1995-06
- Keywords:Exponentially Weighted Moving Averages (EWMA), Control charts, Shewhart chart, Average run length (ARL), Statistical process control, Automatic process control

Autocorrelated Data and SPC
Mini Paper Taken from the Summer 1993 Newsletter
This paper explains time dependent autocorrelation and proposes ways to deal with its effects on statistical control charts...
- Filetype: pdf
- Publish date: 1993-06
- Keywords:Autocorrelation, Control charts, Shewhart chart, X bar, CUSUM chart, Exponentially weighted moving average (EWMA) chart, Residuals

The Alpha-Beta Wars: Which Risk Are You Willing to Live with?
Mini Paper Appearing in Spring 1988 Newsletter
This issue contains the Mini-Paper "The Alpha-Beta Wars: Which Risk Are You Willing to Live with?" by Annabeth Propst...
- Filetype: pdf
- Publish date: 1988-03
- Keywords:Common cause, Hypothesis testing, PDCA (plan-do-check-act) cycle, Shewhart chart, Special cause, Type 1 error, Type 2 error