Posts Tagged ‘lean-six-sigma’
Friday, January 13th, 2012
A student of mine had numerous questions about the various statistics used in Six Sigma. Here is my response to him in an open email:
The questions you are asking regarding “Where do these statistics come from?” require entire courses in statistics to answer. In Lean Six Sigma we take information from a dozen or so statistics courses, project management courses, psychology courses, business courses, mathematics courses, etc. and put it into an action framework that can be used to make fast improvements. We probably present less than 10% of the information you would receive if you sat through all of these courses, but we do so in less than 5% of the time it would take to complete all of these courses. It’s a tradeoff. We make the greatest compromises in the field of statistics. We discuss the use and interpretation of a select subset of statistics, and answer the question “where do these statistics come from?” by saying “they come from computer software.” While most are satisfied with this answer, some find the answer to be most unsatisfying. Judging from your questions, I suspect you are in the latter group.

Two-Way ANOVA Calculations from E-Handbook of Statistics
Assuming you don’t have the time or the desire to take all of the courses relating to the Lean Six Sigma body of knowledge, but still seek answers to the specific statistics you asked about, I recommend the E-Handbook of Statistical Methods. This reference source is free and very comprehensive. It’s easy to search and will give you the answers you seek. For example, I searched on the term sum of squares, which you asked about, and the search returned pages on the half-normal probability plot (your question about fig. 10.26,) 1-way ANOVA (several of your question were about these calculations,) and several other related topics. A search on ss interaction provides answers to your question about the calculation of this intermediate statistic.
Sorry I can’t address all of your questions via email, but perhaps the reference above will start you on your way to answers. I had the same questions when I started learning about quality improvement nearly 45 years ago, and I am still looking for answers to questions today. Have fun!
Tom Pyzdek
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Tags: action framework, body of knowledge, business courses, compromises, computer software, email, field of statistics, improvements, interaction, lean-six-sigma, mathematics courses, probability plot, project management courses, psychology courses, six-sigma, statistical methods, statistics courses, subset, sum of squares, tradeoff
Posted in Education, Introduction to Six Sigma, Six Sigma Tools, Statistical Tools for Six Sigma | No Comments »
Thursday, January 12th, 2012
CEOs report that their innovation efforts are hampered by unsupportive cultures, rigid organizational mindsets, and lack of processes and discipline. Lean Six Sigma addresses all of these issues. When done properly, Lean Six Sigma can be used to supercharge innovation. Find out more by attending this free webinar delivered by Thomas Pyzdek.
Click the link below to reserve your seat for this webinar.
Wednesday, January 18, 11:00AM EST. Click here to register.
Click here to view a recording of the webinar.
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Tags: ceos, cultures, discipline, free webinar, innovation efforts, lean-six-sigma, mindsets, six-sigma, thomas pyzdek
Posted in leadership, Leading Six Sigma, Six Sigma Videos, Webinars | No Comments »
Sunday, January 8th, 2012
In the past I have argued that Lean Six Sigma has its limits and that care should be taken when applying it to innovation. My recommendation was based on observations that organizations which tried to do this essentially quashed innovation by trying to measure innovation using the kind of metrics used for operational processes. I concluded that the attempt to measure creativity as if it were a process was a misapplication of Lean Six Sigma that practitioners should avoid.
True enough, but not the whole story. The fact is that when I look at what my clients do with Lean Six Sigma, and review projects from students, I can see that they are, in fact, innovating. In Phase I, when companies begin Lean Six Sigma, it is usually viewed as an initiative and the first efforts focus on creating a culture where change is possible, organizing an infrastructure for change, training a cadre of part- and full-time change agents, and pursuing projects chosen to move the organization towards its vision. This sets the stage for innovation. The real transformation here is in the way people in the organization think, specifically:
- They are fact and data driven. Opinions are considered the source of hypotheses to be tested, not absolute truth. The change agents have the tools they need to rigorously test these hypotheses.
- They are customer focused and they know how to identify the voice of the customer. This gives them insights into customers needs that go well beyond what customers explicitly say their needs are.
- They think of organizations as processes as well as functions. They understand that functions exist to serve stakeholders and enable core processes.
- They understand variation differently than their untrained counterparts. They know that some variation demands an immediate response, but other variation requires system changes. They know how to tell one type of variation from the other.
- They think of results as stemming from systems rather than individuals.
- They know that outcomes–both wanted and unwanted–are caused, and they know how to drill down to these causes. I.e., they understand that processes are transfer functions that transform inputs into outputs.
- They understand the importance of focusing on the few critical to quality drivers, and how to identify them.
- They know how to organize people for change.
By design the time spent as a full-time change agent is limited. Black Belts serve their terms and return to the organization in other roles. As time goes by these Lean Six Sigma change agents begin to change the organization’s DNA. Phase II occurs as the culture change takes hold and the change agents, now in key leadership positions, see the Lean Six Sigma approach as the best way to lead the organization towards its vision. They see that they can create new and innovative ways to serve their customers’ latent needs based on the intimate knowledge of the customer and the insights gained using Lean Six Sigma on a smaller scale. They better understand the organization’s capabilities based on experiences learned during the deployment of the initiative. Lean Six Sigma moves far beyond discrete improvement projects and becomes the framework for leading the organization as a whole towards its vision.
Lean Six Sigma also teaches leaders a new way to lead. Their involvement in defining the organization’s core processes and enabling functions, identifying process owners, finding opportunities for improvement linked to their strategies, defining the drivers of these opportunities, selecting relevant metrics for the drivers, and linking the metrics to activities throughout the organization (including but not limited to Lean Six Sigma projects,) gives them a new way to get things done.
The combination of a new way of thinking, intimate knowledge of the customer, a culture that embraces and expects change, and a powerful new way to lead, makes it possible for the leadership to bring together disparate parts of their organization all focused on a single purpose: wowing the customer. In short, innovation. This is not the aforementioned clumsy and ill-advised attempt to measure the unmeasurable or to “manage the innovation process,” it is an inspired expansion of the scope of Lean Six Sigma from a purely operational improvement tool to a purposeful search for innovative improvement opportunities. It is the application of the core principles of Lean Six Sigma to the problem of creating a resilient organization that not only responds quickly to changing customer needs and competitive pressures, but also improves the human condition by creating products and services never before conceived.
In summary, Lean Six Sigma becomes the springboard for continuous innovation. It’s a natural extension of the idea of continuous improvement.
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Tags: core processes, creativity, hypotheses, Innovation, lean-six-sigma, Metrics, operational processes, six-sigma, variation, Voice-of-the-Customer
Posted in leadership, Leading Six Sigma | No Comments »
Thursday, December 29th, 2011
The United States Army’s Office of Business Transformation is pursuing a 3 year program to improve its operations, and Lean Six Sigma is a big part of it. According to its web page on Lean Six Sigma, the Army has an award-winning, world-class Lean Six Sigma program that it applies as a core capability in its business transformation. The Army is reviewing core business processes to better support its forces, to reduce waste and to improve quality. The ultimate goal is to free human and financial resources for more compelling operational needs. The Army believes the fusion of Lean and Six Sigma improvement methods is required because:
- Lean cannot bring a process under statistical control
- Six Sigma alone cannot dramatically improve process speed or reduce invested capital
- Both enable the reduction of the cost of complexity
The Army’s deployment is one of the largest anywhere. The Army’s Lean Six Sigma program has trained more than 1,450 senior leaders. As of the date of the report on their web site, the Lean Six Sigma community has completed nearly 5,200 projects, and more than 1,900 projects are currently in progress. Completed projects have yielded significant financial and operational benefits at organizations across the Army.
The Army’s use of Lean Six Sigma is part of its effort to transform the Army through the establishment of the Institutional Army Transformation Commission in August 2011. The Secretary of the Army, John M. McHugh, established the Commission in a Memorandumon 15 August 2011. According to the Secretary, “reforming and restructuring the Institutional Army – the Generating Force – is critical to building the Army of the future and supporting the forces of today. It must be as nimble, agile and adaptive as our Operating Force – driven by ideas, innovation and a determination to bring the best services and equipment, training and leaders, medical care and support to our Soldiers, civilians, and their family members.”
I think its safe to say that creating an organization that is nimble, agile, adaptive, driven by ideas, innovation, and a determination to bring the best are all goals that any leader can embrace. I believe that the Army is correct in believing that Lean Six Sigma can help them achieve these goals.
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Tags: army transformation, business transformation, civilians, complexity, core business processes, core capability, deployment, family members, financial resources, improvement methods, john m mchugh, lean-six-sigma, medical care, memorandum, operational benefits, secretary of the army, sigma program, six-sigma, statistical control, united states army
Posted in leadership, Leading Six Sigma, News | No Comments »
Monday, December 26th, 2011
KANDAHAR AIRFIELD, Afghanistan –
Military logistics operations are centered on providing the best possible service to their customers. Ensuring the best possible service to soldiers downrange is the priority of every logistics leader. One deployed unit is providing their soldiers an opportunity to learn new ways to improve logistic capabilities. The Task Force Resolute command provides a Lean Six Sigma course at the U.S. Forces Afghanistan conference room on Kandahar Airfield, Afghanistan.
“Through Lean Six Sigma, soldiers and leaders will learn how to properly manage time and resources while delivering a top quality product the first time,” said Chief Warrant Officer Jackie Vuorinen, the TF-Resolute safety officer. “This is a program all soldiers can use to save Army resources while providing higher quality products.”
It’s only natural that the Task Force Resolute command use Lean Six Sigma. After all, providing military logistics is a complex process and, like any process, it can be improved. The current best practice for improving complex processes is Lean Six Sigma. Soldiers are being taught the Lean Six Sigma Green Belt body of knowledge. The most fundamental principal taught by the “Green Belt” course is to center the students thinking to several key concepts: define, measure, analyze, improve and control.
The soldier begins by defining a need within their organization centered around quality, cost or timing. The need must be clearly stated through a quantifiable unit such as units shipped, number of products delivered in a sub-standard state or the amount of time it takes to bring a product to the customer. soldiers measure all their statistics through historical data. The data is analyzed and the implications of faults within the organizations system are used to determine methods of improvement. These methods are implemented and used to create a steady improvement in service to the end customer.
Perhaps the effectiveness of the approach is why, according to the DVIDs website story, that students strongly recommend the course to all leaders and soldiers. In truth, this is the standard Lean Six Sigma approach applied in the context of military logistics. Let’s hope that the word spreads.
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Tags: army resources, kandahar airfield, lean-six-sigma, logistic capabilities, military logistics operations, quality cost, safety officer, six sigma course, six sigma green belt, six-sigma
Posted in lean-six-sigma, News | No Comments »
Monday, November 28th, 2011
The Pyzdek Institute has announced that it is giving away a complete Statistics course with registration for any of its Six Sigma or Lean Six Sigma Green Belt or Black Belt training courses. The statistics course, which includes 4 DVDs and two follow-along printed guides, consists of 24 lectures of 30 minutes each. Part 1 (12 lectures) covers all of the subjects commonly included with college introductory statistics course. Part 2 (12 lectures) explores a wide variety of applications of statistical methods.These challenging yet accessible lectures assume no background in mathematics beyond basic algebra. While most introductory college statistics courses stress technical problem solving and plugging data into formulae, this course focuses on the logical foundations and underlying strategies of statistical reasoning, illustrated with plenty of examples. Professor Michael Starbird walks you through the most important equations, but his emphasis is on the role of statistics in daily life, giving you a broad overview of how statistical tools are employed in risk assessment, college admissions, drug testing, fraud investigation, and a host of other applications.
This offer is good only while supplies last. Click here to register or to get additional details.
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Tags: basic algebra, black belt training, college statistics, introductory statistics course, lean-six-sigma, michael starbird, risk assessment, six sigma green belt, six-sigma, statistical reasoning, statistical tools, statistics courses
Posted in News, Statistical Tools for Six Sigma | No Comments »
Tuesday, September 27th, 2011
September 26, 2011
Continuous Process Improvement Symposiums, sponsored by California State University at Northridge, has announced that their first posthumous Lifetime Fox Award will honor quality improvement legend Dr. W. Edwards Deming. Dr. Deming’s award will be accepted by the Deming Family. It is scheduled for presentation on November 18, 2011 during the 2011 CSI symposium which runs from November 17-19.
A Fox Award for Lifetime Achievement will also be presented to Thomas Pyzdek. Considered a world authority on quality and Six Sigma, Thomas Pyzdek has written over 50 works, including such classics as The Six Sigma Handbook, The Quality Engineering Handbook, and The Handbook for Quality Management. Pyzdek’s work is widely acclaimed for its ability to make the seemingly complex subject of process excellence understandable. Pyzdek’s works have been studied by hundreds of thousands in their preparation for various certification exams. He is also a skilled trainer, hired by industry leaders worldwide to aid in their process excellence programs. Pyzdek also offers online certification and training on his website.
The CPI Symposium’s primary emphasis is to bring continuous improvement methods, including Lean, Theory of Constraints and Six Sigma, to light in an integrative, synergistic approach. It is also the occasion for the presentation of the prestigious Robert E. Fox awards. Lifetime honorees for the Fox Award are considered living role models in the field of organizational Continuous Improvement. This award recognizes those outstanding individuals whose pioneering spirit and inventiveness have improved our society and inspired others. The Fox Awards Review Board selects individuals they feel have contributed significantly to this endeavor, either with the creation, or passionate propagation, of breakthrough concepts. Past Lifetime Recipients include: Steven R. Covey, Peter Senge, Joel Barker, and others.
Click here to register for the 2011 Continuous Process Improvement symposium. Both live and Web Streaming registration is available.
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Tags: Awards, lean-six-sigma, operational excellence, quality, quality engineers, quality profession, thomas pyzdek
Posted in Miscellaneous, News | 1 Comment »
Friday, September 16th, 2011
At a meeting of the Supercommittee Tuesday, Congressional Budget Office Director Douglas Elmendorf cautioned that ferreting out waste, fraud and abuse would have a negligible impact on the panel’s work. “There is no evidence that suggests that this sort of effort can represent a large share of the $1.2 trillion or $1.5 trillion or the larger number that some of you have discussed as being the objective in savings for this committee,” Mr. Elmendorf said. The Washington Times story goes on to say that Vice President Joseph R. Biden is touting his efforts to find $1 billion in wasteful government spending here and there.
$1 billion dollars of waste in a federal budget that for 2012 alone is estimated to be $3.729 trillion? By my math this amount represents 0.027% of the budget. And that assumes that the Vice-President is looking at only one year’s savings. Such a pittance is hardly worth the bother.
My experience with the private sector suggests that there is in the neighborhood of 25%-40% waste in any organization which hasn’t applied Lean Six Sigma or any similar technique. This is well documented by research. The public sector certainly has at least this much room for improvement. At the low end of the estimate this represents a potential savings of $932 billion in the 2012 budget alone, or about 85% of the projected 2012 deficit. The fact that the CBO Director believes that public sector waste reduction opportunities is negligible indicates that he is completely unaware of the reality of the situation. It is unfortunate that he is spreading his ignorance to the Supercommittee charged with finding real savings. The implications for true reform and for eliminating non-value added activities rather than value-added activities are ominous.
The Operational Excellence community of professionals in the Quality, Six Sigma, Lean and Lean Six Sigma fields know from experience that the amount of waste is huge. This presents governments at all levels with the opportunity to eliminate deficits completely while not cutting value for the beneficiaries of programs. The question is, when will our political leaders begin to take this seriously? There is currently some work being pursued by the folks at Strong America Now to make this happen. Some Presidential Candidates, such as Newt Gingrich, are speaking out. The comments of Mr. Elmendorf and Mr. Biden’s efforts indicate that the current leadership has yet to understand the magnitude of the opportunity before them.
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Tags: cbo director, congressional budget office, elmendorf, federal budget, joseph r biden, lean-six-sigma, operational excellence, private sector, public sector, six-sigma, waste reduction opportunities, wasteful government
Posted in News, Politics | No Comments »
Thursday, September 8th, 2011
Click here to access the NIST/SEMATECH e-Handbook of Statistical Methods. NIST is an agency of the US Department of commerce, so this work was undertaken at public expense. It covers literally every statistical tool used in Lean Six Sigma, and many, many more. It includes hundreds of case studies and examples. Best of all, it’s free! Enjoy!

Skewness from NIST E-handbook
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Tags: case studies, lean-six-sigma, nist, six-sigma, statistical methods, statistical tool, us department of commerce
Posted in Resource Providers, Six Sigma Tools, Statistical Tools for Six Sigma | No Comments »