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

by Fischer, Wayne G.;

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

Control Charting and Process Capability Statements: Issues and Resolution

by Breyfogle, Forrest W.

A predictive performance measurement system is presented to address issues associated with traditional control charting techniques and process capability statements...

  • Filetype: wmv
  • Publish date: 2011-07
  • Keywords:Control charts, Statistical process control, Process capability, Scorecards, Dashboards

Model Selection (Part II: Model Selection Procedures)

by Gardner, Sam;

Overview of model selection procedures, including stepwise regression, model ranking, and model averaging...

  • Filetype: pdf
  • Publish date: 2011-05
  • Keywords:model selection, Regression

Statistical Engineering Webinar

by Snee, Ron; Hoerl, Roger;

An introduction to “statistical engineering”, the study of how to best use known statistical principles and tools to solve high impact problems for the benefit of mankind...

  • Filetype: mp4
  • Publish date: 2011-04
  • Keywords:Statistical Thinking

Model Selection (Part I: Model Selection Criteria)

Mini Paper Appearing in Winter 2011 Newsletter

by Sam Gardner

Model selection is the process of choosing terms for a statistical model that adequately describes or accurately predicts the system under observation...

  • Filetype: pdf
  • Publish date: 2011-01
  • Keywords:model selection, R-squared, Mallow's Cp, AIC, BIC

Improving Your Data Transformations: Applying the Box-Cox Transformation

Mini Paper Appearing in Winter 2011 Newsletter

by Jason W. Osborne

An overview of traditional normalizing transformations and how Box-Cox incorporates, extends, and improves on these traditional approaches to normalizing data...

  • Filetype: pdf
  • Publish date: 2011-01
  • Keywords:Box-Cox Transformations, normalization
Open Access

Quality Engineering Your Christmas Tree

by Roeder, Ken PhD., Forest Geneticist, North Carolina Division of Forest Resources;

Christmas trees are used as a case study to highlight quality applications in a non-manufacturing industry. Genetics is one of the latest tools being applied to improve the average quality level of tree crops. Tree improvement through selective breeding is heavily reliant on design of experiments (DOE) and statistical data analysis. The multi-year time frame required for tree crop growth requires long-term planning of longitudinal studies, sequential experimentation, and up-front identification of other factors for inclusion in these designs. Extensive work has been done by the North Carolina Division of Forest Resources to improve the trees grown and sold for wood products and for the Christmas tree market in particular. Experimental design considerations must take the underlying genetics into account, as well as balance complex logistical and feasibility issues associated with field testing. Statistical data analysis is critical in quantifying differences and interpreting results so th

  • Filetype: pdf
  • Publish date: 2010-10
  • Keywords:Field Testing, Analysis of Variance (ANOVA), Improvement, Genetic, Christmas trees
Open Access

International Statistical Standards: A Guide for the Uninitiated

by Johnson, Mark E.;

International statistical standards provide an abundance of tools for potential use by practitioners. The collection of these standards can be thought of as constituting a toolbox including a variety of statistical methodologies. These documents can be extraordinarily helpful, if one or more of them match the problem at hand. For applications involving commerce with countries belonging to the ISO community, the use of an international standard provides immediate credibility—particularly with in the areas of acceptance sampling and measurement method accuracy. Munitions, food quality control, and inter-laboratory testing are some areas for which statistical standards have played an important role. However, international statistical standards are not a panacea, as the range of topics covered is limited to material covered in sixty-eight published documents (as of 17 August 2010). There is a loyal users community for international statistical standards but the statistical profession as

  • Filetype: pdf
  • Publish date: 2010-10
  • Keywords:Acceptance sampling, Measurement method accuracy, Measurement systems validation, Bulk sampling, Interpretation of data, Statistical terminology, Statistical process control, Inter-laboratory testing
Open Access

Reducing Variation During Design

Mini Paper Appearing in Spring 2010 Newsletter

by Taylor, Wayne A.;

Design offers the first and best opportunity for reducing variation in output variables by establishing requirements for the inputs...

  • Filetype: pdf
  • Publish date: 2010-05
  • Keywords:Variance Reduction, Specifications, Tolerances, Robust design
Open Access

A Gentle Introduction to the Analysis of Sequential Data

by Pan, Rong;

This mini-paper discusses some basic purposes for doing sequential data analysis and the simple tools that can assist in data analysis...

  • Filetype: pdf
  • Publish date: 2010-02
  • Keywords:Time Series Data, Autocorrelation, Stationary, Smoothing, Automatic process control,

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