Ken Feldman

In 1903, famed writer H.G. Wells first described the importance of mathematical analysis. Samuel Wilks, in 1951, paraphrased Wells and developed this famous quote: “Statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write.” Let’s see why he said that.

Do you want to know whether your process is in control or not? Statistical Process Control, or SPC, is the tool you want to learn about, so let’s get started. 

When you speak of subgrouping, it is usually in the context of constructing a control chart. Let’s explore the topic in a little more detail. Subgrouping is a technique used in control charts to group data into smaller, more manageable sets or subgroups. The purpose of subgrouping is to increase the sensitivity of the control […]

Strategic planning is a formal, organized, proactive and structured process used by an organization to define its vision, goals, and objectives. The process of strategic planning also includes planning for, and the allocation of the resources needed to reach the stated goals and objectives of the organization. It is the roadmap for achieving your organization’s […]

Once in a lifetime, someone comes along who has a profound and transformational impact on society. Dr. W. Edwards Deming was such a person and his System of Profound Knowledge has had a significant impact on the business world.

So much to learn, and so little time to do it. The Six Sigma Body of Knowledge (SSBOK) is a collection of the tools and methodology of Six Sigma and serves as the base for most Six Sigma training and certifications.

A saturated design, in the context of Design of Experiments, is a simplified experiment used for screening possible significant factors. It is designed to give you a high-level understanding of the main effect of factors, but not their interactions.

A scorecard in sports indicates which team is winning by monitoring an important metric such as number of runs, or baskets or touchdowns. Your business scorecard can provide valuable information on how your organization is doing. In business, a scorecard is a tool used to measure and track the performance of an organization or specific […]

When writing your Six Sigma project charter, it is important to clearly state the scope of the project, so the team doesn’t attempt to “boil the ocean” or “solve world hunger”. Scope puts some boundaries and constraints on the activities of the project. In the context of Six Sigma, scope refers to the boundaries and […]

It is usually impractical to measure everything if you are trying to collect data. That is why you will use an appropriate sampling technique. But how big a sample should you get? Using a sample size calculator will make that task quick and easy. Let’s see how. When you are required to collect data to […]

You want your processes to be able to still function well in the face of changes and variation. Let’s learn some more about how you can develop these robust processes. A robust process refers to a well-designed and reliable process that consistently delivers the desired outcomes, even in the face of variations, uncertainties, or challenges. […]

When you hear the term residual, think of linear regression. It is the error of your prediction equation and has implications for the quality of your regression analysis. 

The creation of a rational subgroup is the key to the proper use of control charts. Let’s try to understand what makes them rational.

If your eyeglasses have the correct prescription, you will have proper resolution and can see clearly and with detail. The same holds true for your Measurement System Analysis and Design of Experiments. Greater resolution means your data can help you see more information about your process.

What does it mean when you see the phrase Q1? Using the common phrase of consultants, it depends, the definition of Q1 is dependent upon the context of its use. Let’s examine the possible definitions. While the phrase Q1 seems simple enough to understand, the true meaning will be a function of the context in […]

The strategy of continuously improving your organizational processes by setting your goals, identifying deviations from those goals, and then taking appropriate actions to adjust your processes to close the gaps.

Say what you do and do what you say is a phrase often used to summarize what quality standards like QS-9000 are all about. Although now obsolete, let’s explore what it was and what replaced it.

SCAMPER is an acronym for a simple approach to creative brainstorming. The technique uses a series of questions that prompt you to come up with creative ideas for improving products and processes.

If your organization is known for its high-quality products and services, then you should perceive that as a good thing. But did the concept of quality control help you get there? Let’s explore what quality control really means. Quality is often defined as having your products or services meet your customers’ specifications or expectations. Control […]

R-square is the square of R. That’s easy. But what does it really mean, and how do I interpret it?

How do you take your customer’s requirements and drill down through the entire product or service development process? Quality function deployment is a great way to do that. Let’s see how it is done.

In statistics and math there are two types of data: quantitative data and categorical data. A variable that represents quantitative data is called a quantitative variable while a variable representing categorical data is called a categorical variable.  Overview: What is a quantitative variable?  Quantitative data represents values and numbers which can be measured or counted […]

Process management, sometimes referred to as Business Process Management (BPM) is a systematic approach to ensure that your organization’s business processes are aligned in an efficient and effective manner, and aligned with your organization’s strategic goals.  Some of the benefits to having a process management system in place are: Overview: What is process management?  The […]

You are convinced there is a correlation between your X and Y variables. But, you won’t know for sure until you can establish the strength of the correlation. That’s where R comes in. Let’s learn some more about R. R is the symbol used to represent the strength and direction of correlation between continuous variables. […]