six sigma

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The Delphi Method: Uses, Do’s, and Don’ts

Do you have a problem where you need a group of “experts” to reach a consensus, where consensus means a pre-study defined level of agreement? The Delphi Method is one such group technique. But what is it? When should it be used? How is it done? What are some advantages and disadvantages? In order to [...]

2020-07-04T17:37:20+00:00 By |Tags: , , |0 Comments

Statistical Tolerance Intervals: Definition, Use, and Calculation

In this blog, we will see how statistical tolerance intervals can be applied to infer the proportion of individual products within a population. We take a representative sample from a population, compute sample statistics, and make an inference about a population parameter. The most familiar sample statistic is the sample mean. That is used to [...]

Thought Maps for Six Sigma Projects

How do you capture what occurred on a project in an easy-to-understand manner, communicate it, and document project questions such as what methods were used, what solutions were explored, and lessons learned? The answer is the Thought Map originally proposed and developed by Cheryl Hild, Doug Sanders, and Bill Ross in 2000. From project start [...]

The Six Sigma Dabbawalas of Mumbai

In this video from Samatvam Academy, we see how the lunchtime food delivery service in Mumbai, India is handled by the renowned dabbawalas. Mumbai middle class workers travel an average of three hours and spend eight hours or more at work. An on-time lunch at their workplace is important for 200,000 of them every working [...]

2019-12-14T09:44:39+00:00 By |Tags: , , |0 Comments

Is Six Sigma Applicable in a Military Services Setting?

There are 195 countries in the world. Of those, 15 do not have a military. So roughly 92% of the countries have some form of one. And that means logistics is important in supplying the military. That brings us to the question: is Six Sigma applicable in a military services setting? The Warrior Logistician, Matt [...]

2019-10-19T04:26:57+00:00 By |Tags: , , , |0 Comments

Is Your Continuous Improvement Program Too Complex?

What are the elements of your continuous improvement program? How are they integrated? Or are they expected to be done separately without much guidance on what to do, leaving a complex approach with endless meetings? As a result, is your organization too focused on the problem-solving process rather than being more focused on obtaining solutions? [...]

Six Sigma Financial Jobs in Demand

There is no doubt that many top financial institutions have embraced some form of Lean Six Sigma. As an exercise we went to Indeed.com in order to get a snapshot of what the demand for jobs might be.  Accordingly, we looked at job notices on Indeed for six top financial institutions. J.P. Morgan Goldman Sachs [...]

Integrating Simulation with DMAIC

First, let’s review the objectives of each DMAIC step. D: Define (Establish project purpose and scope, background on process and customer) M: Measure (Quantify existing process performance) A: Analyze (Determine ways to eliminate or reduce the gap between current performance and project goals) I: Improve (Evaluate, select, and implement chosen solution) C: Control (Institutionalize the [...]

Simpson’s Paradox: Be Wary of Aggregate Data

Simpson's paradox occurs when a trend appears in several different groups of data but disappears or reverses when the data from these groups are combined. In this video, Guillaume Riesen, currently a Ph.D. student in neuroscience at Stanford University, gives examples of how combining data from two disparate groups can lead to a different and [...]