Join the Statistics Division on Tuesday, December 20th at 9:00 – 10:00 AM PST for a webinar to be given by Eduardo Santiago, Technical Training Specialist at Minitab.
El análisis de capacidad de un proceso requiere de la evaluación de la variación y la comparación del desempeño del proceso con respecto a sus especificaciones. Tradicionalmente decimos que un proceso es capaz si la mayoría de las partes que produce se encuentran dentro de especificación, en otras palabras si la tasa de defectos es pequeña. Inicialmente este análisis fue popularizado por Joseph Juran en su Manual de Control de Calidad, y hoy en día la capacidad de un proceso se mide por lo regular en función de su Cpk y Ppk.
A pesar de la simplicidad en el cálculo de dichos estadísticos, la falta de entendimiento de estos métricos de capacidad pueden conducirnos a su malinterpretación o peor aún la manipulación de tales sin haber antes mejorado el proceso. Por lo tanto es importante entender los supuestos necesarios para validar e interpretar los estadísticos de capacidad. En esta presentación, discutiremos cómo validar los supuestos, pero más importante, cómo lidiar con situaciones cuando los supuestos han sido violados.
En este seminario consideraremos tres enfoques para tratar datos que no están normalmente distribuidos:
1) Hablaremos de las transformaciones de Box-Cox y Johnson
2) Discutiremos la utilización de distribuciones no-normales, y por último,
3) Utilizaremos métodos alternos para estimar con mayor exactitud y precisión los estadísticos de capacidad.
The William G. Hunter Award is presented annually to encourage the creative development and application of statistical techniques to problem-solving in the quality field. Named in honor of the Statistics Division’s founding chairman, the award recognizes an individual who demonstrates Bill Hunter’s most enduring qualities of excellence in statistics as a communicator, a consultant, an educator, an innovator, an integrator of statistics with other disciplines and an implementer who obtains meaningful results.
This year’s winner is A. Blanton Godfrey. He was nominated by Jeffrey Hooper, with testimonials from Maureen Bisognano, Robert Waller, J. Stuart Hunter, Roger Hoerl, Emily Parker, Charles Little, Ronald D. Snee, Craig Long, and Mark J. Fischer. Dr. Godfrey is a statistician and the Joseph D. Moore Distinguished University Professor in the College of Textiles at North Carolina State University. He earned a bachelor’s degree in physics from Virginia Polytechnic Institute as well as a master’s degree and PhD in statistics from Florida State University. He is the Former Head of the Quality Theory and Technology Department of AT&T Bell Laboratories and the Former Chairman and Chief Executive Officer of Juran Institute, Inc. He is a fellow of the American Society for Quality, American Statistical Association, World Academy of Productivity Sciences, and the Royal Society for the encouragement of Art, Manufacturers, and Commerce.
Blan Godfrey is well known to many in academia and industry. He has received the Edwards Award and the Distinguished Service Medal. He has given the Deming Lecture and presented the W. J. Youden Address. He is Co-author of Modern Methods for Quality Control and Improvement and Curing Health Care: New Strategies for Quality Improvement. Blan is the Founding Editor of the Six Sigma Forum, a Member of Committee for ISO 9000 and has served on numerous boards and executive committees.
Blan was unable to attend the Fall Technical Conference in Minneapolis. Bill Meeker accepted the award on Blan’s behalf.
Past recipients are available here: http://williamghunter.net/award/.
The ASQ Statistics Division is proud to announce that the Lloyd Nelson award was presented at this year’s Fall Technical Conference. The award recognizes the paper in the ASQ journal, Journal of Quality Technology (JQT), which has “the greatest immediate impact to practitioners”.
As the editor of ASQ’s Industrial Quality Control, Nelson in the 1960s proposed dividing the magazine into two publications. Eventually, he convinced the board to create the general-interest magazine Quality Progress and the more technical quarterly Journal of Quality Technology. He became the first editor of the Journal of Quality Technology. Nelson was honored in 2001 as one of the first recipients of ASQ’s Distinguished Service Medal. He was named an ASQ Fellow in 1964 and was awarded the Shewhart Medal in 1978. Nelson also served on ASQ’s Awards Board and Shewhart and Deming Medal Committees, and was a long-time member of the Journal of Quality Technology’s Editorial Review Board.
This year, the Lloyd Nelson Award was presented to Russell V. Lenth for his outstanding paper “The Case Against Normal Plots of Effects”, published in Volume 47, Issue 2. Russ attended the Fall Technical Conference in October in Minneapolis to receive the plaque.
The abstract for the award winning paper reads as follows:
When analyzing effects in an unreplicated experiment, normal or half-normal plots of the effects (also called Daniel plots) are a popular way to visualize them and to judge which are active. This article discusses the ways in which these plots can be confusing and misleading. There are other methods available that are less subjective, easier to explain, more powerful, and less likely to be misinterpreted. I recommend against using Daniel plots, even as a supplement to one of these better analyses.
This paper has been given Open Access by the publisher until October 2017 and can be found at the following link: http://rube.asq.org/quality-technology/2015/04/engineering/the-case-against-normal-plots-of-effects.pdf
The ASQ Statistics Division is proud to announce that the Søren Bisgaard award was presented at this year’s Fall Technical Conference. The award recognizes the paper in the ASQ journal, Quality Engineering (QE), with the “greatest potential for advancing the practice of quality improvement”.
Søren Bisgaard, Isenberg Professor of Management at the University of Massachusetts-Amherst, died in Boston on December 14, 2009, after a year-long struggle against mesothelioma. Bisgaard was an expert on quality management and applied statistics who had an international reputation. He was recognized for his work and granted several awards, including the Ellis R. Ott Award (1990), the Wilcoxon Prize (1998), the Shewell Award (1981 and 1987), the Brumbaugh Award (1987, 1995, and 2008), the Shewhart Medal (2002), and the George Box Award (2004). He was a Fellow of the American Statistical Association and American Society for Quality and an academician of the International Academy for Quality. Søren was a strong advocate of quality improvement and was for many years the author of the “Quality Quandaries” column in QE.
This year, the Søren Bisgaard Award was presented to Rick Picard, Michael S. Hamada, Geralyn M. Hemphill, and Robert E. Hackenberg for their outstanding paper “Accounting for Nonrandomly Sampled Data in Nonlinear Regression”, published in Volume 27, Issue 2. Rick Picard attended the Fall Technical Conference in October in Minneapolis to receive the plaque.
The abstract for the award winning paper reads as follows:
We analyze data that are “cherry picked” (i.e., nonrandomly sampled) from a population and are then used for regression modeling and prediction. Nonrandom data are encountered in numerous situations, and the application of standard statistical methods developed for random samples can easily lead to incorrect conclusions. A case study is presented to illustrate the related issues, as well as the repercussions of erroneously ignoring the nonrandom sampling.
This paper has been given Open Access by the publisher through September 2017 and can be accessed at the following link: http://www.tandfonline.com/doi/full/10.1080/08982112.2014.933979
We invite you to submit abstracts for presentation at the 61st Fall Technical Conference to be held on October 5-6, 2017, in Philadelphia, PA. The Fall Technical Conference has long been a forum for both statistics and quality and is co-sponsored by the American Society for Quality (Chemical and Process Industries Division and Statistics Division) and the American Statistical Association (Section on Physical and Engineering Sciences and Section on Quality and Productivity). The goal of this conference is to engage researchers and practitioners in a dialogue that leads to more effective use of statistics to improve quality and foster innovation.
See the link before for full details. Deadline is Feb. 28th, 2017
FTC 2017 Call For Papers
Interested in learning about experimental sample sizes? Join the ASQ Reliability Division’s upcoming free webinar on Sample Size considerations in Statistical Experiments. Please register at the following link:
Join the Statistics Division on December 1st at 1:00 – 2:00 PM Eastern for a webinar to be given by Karen Grace-Martin, statistical consultant, president and founder of The Analysis Factor.
You’ve probably heard about many different approaches to dealing with missing data, and you’ve probably gotten different opinions about which one you should use. In this webinar, you’ll get an overview of:
• the three types of missing data, and how they affect the approach to take
• the common approach that is generally worse than any other
• the easy, common, seemingly bad approach that often isn’t so bad, and the situations when it doesn’t work
• the two approaches that give unbiased results, one that is very easy to implement, but only works in limited situations, and one that is harder to implement well, but works with any statistical analysis.
Congratulations to the 2016-2017 Ellis R. Ott Scholarship Winners!
Andy Walter has been teaching high school mathematics and coaching high school football for 10 years. He has taught Advanced Placement Statistics for 7 years, and has served as an AP Reader for two. He is currently pursuing a Master’s in Applied Statistics through the University of Kansas. His research interests are statistics education, education policy, and public policy. He and his wife Elizabeth live in Prairie Village, KS.
Matthew J. Keefe is currently a PhD candidate in the Department of Statistics at Virginia Tech. He earned his B.S. degree in Mathematics from Millersville University of Pennsylvania in 2012 and his M.S. degree in Statistics from Virginia Tech in 2013. He is an active collaborator in LISA (Virginia Tech’s Laboratory for Interdisciplinary Statistical Analysis), where he closely works with researchers in other fields. His research interests include statistical process monitoring and spatial statistics. Matthew plans to graduate in the spring of 2017. Afterwards, he plans to pursue a career in industry where he will apply his statistical knowledge to solve a wide variety of problems
The 60th Fall Technical Conference will be held in Minneapolis, MN, October 6-7, 2016. The theme of the conference is “Statistics & Quality: Twin Pillars of Excellence”. The program committee has put together an outstanding group of sessions including topics in design of experiments, statistical process control, big data, modeling and simulation. Friday concludes with a SPES special session.
Please make your hotel reservations early because there is a football game in town that weekend and rooms are going quickly.
Click below for full conference information. Register Now!