Library
Newsletter Archive - full copies of past Division newsletters
Statistics Body of Knowledge - our library content below focuses on the topics in this listing.
Quality Engineering Your Christmas Tree
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
When People Are The Instrument: Sensory Evaluation Methods
Measurements using people as the instruments are sometimes necessary. This article addresses how to use methods in tandem with statistical procedures to make the measurements more reliable...
- Filetype: pdf
- Publish date: 2009-10
- Keywords:Sensory evaluation, Descriptive analysis, Acceptance test, Intensity, Liking, Discrimination tests, Difference tests, Sensory questions, Score sheets, Rating scales, Hedonic, Replication, Analysis of Variance (ANOVA)
Making Data Patterns Visible
This article shows how to make patterns and key information obvious in tables by following simple principles...
- Filetype: pdf
- Publish date: 2009-05
- Keywords:Data Patterns, Ordering, Rounding, ORACLE, Normal plots, ANOVA
Candy Exercise – Simple Data Analysis
Taken from Fall 2003 Newsletter
This fun filled candy exercise is intended to demonstrate the use of basic statistical tools and Statistical Thinking...
- Filetype: pdf
- Publish date: 2003-09
- Keywords:Statistical thinking, Hypothesis Testing, Signal-to-noise ratio, P-value, Chi-squared Test, Control charts, I and MR chart, P chart, ANOVA
Statistics and Reality – Part 2
Mini Paper Taken From Winter 2002 Newsletter
This Mini Paper shows that the most basic statistical tools usually provide the best insights into processes...
- Filetype: pdf
- Publish date: 2002-12
- Keywords:Time plots, Analysis of Variance (ANOVA), Run charts, Common cause, Special cause
Designing Experiments – An Overview
Mini Paper Taken from the Spring 2000 Newsletter
This paper provides an overview of designed experiments and how to best use them...
- Filetype: pdf
- Publish date: 2000-04
- Keywords:Analysis of Variance (ANOVA), PDSA cycle, Replication, Repetition, Randomization, Signal-to-noise ratio, Completely randomized designs, Block designs, Latin square designs, Youden squares, Full factorial, Fractional factorial
Design, Marketing and Quality Management: Parts of a Whole
Youden Address Appearing in Winter 1992 Newsletter
The successful integration of Quality Management, the marketing function, and en!..
- Filetype: pdf
- Publish date: 1992-01
- Keywords:Preference Models, Conjoint Analysis, Analysis of Variance (ANOVA), Utility Curve, Fractional factorial
Two-Stage Nested Designs
Mini Paper Appearing in Fall 1984 Newsletter
This paper presents an example illustrating the use of a two-stage nested design...
- Filetype: pdf
- Publish date: 1984-09
- Keywords:Nested Design, Analysis of Variance (ANOVA), Equality of Means