Ken Feldman

The phrase “it depends” sums up the concept of interaction in the context of Design of Experiments. Interaction is when the effect of one factor on a response variable depends on the level or setting of another factor. 

Your Six Sigma project will usually focus on a process with customers who directly receive the output of your process. But there are also others who will be impacted and have a stake in the outcome of your project. They are called stakeholders, and you need to understand them.

5C is the formal activity of organizing the workplace, and it serves as the foundation of any continuous improvement effort. Explore the 5C framework, and learn how to implement it in your organization.

Some say that Z is the sign of Zorro (Spanish for fox), the fictional sword-wielding masked vigilante who defended and helped the poor. In statistics, it is something different. In statistics, z usually refers to the standardized score or z-score of a data point in a normal distribution. The z-score measures the number […]

To optimize the benefit of your forecasting, you would like your time series values to be independent. Unfortunately, sometimes your values are correlated. This autocorrelation will have an impact on your ability to interpret what the data is telling you. Autocorrelation refers to the correlation between a time series variable and its lagged […]

When someone says your data is skewed, do you get upset? Skewness can be a natural state of your data. Let’s find out more about skewness and what it means.

Artificial Intelligence (AI) is revolutionizing industries worldwide, reshaping everything from customer service to manufacturing, and sparking questions about its potential to replace skilled professionals. Within quality management, particularly Lean Six Sigma (LSS), many wonder if AI could ultimately replace the role of a Lean Six Sigma Master Black Belt (MBB). As the highest […]

Key Concepts Six Sigma is a well-established, data-driven methodology designed to improve processes by identifying and eliminating defects in manufacturing and business processes. One of the key components of Six Sigma is statistical analysis, which helps organizations identify problems and implement solutions. To perform this analysis, Six Sigma practitioners traditionally rely on specialized statistical software, […]

Entitlement is defined as the best performance you can reasonably achieve with the existing process.

What does your process look like from 30,000 feet? Your extended process view can be described using COPIS, or customer, output, process, input, and supplier. Let’s get in our balloon and go up. 

Background FabChip (fictitious name) was a leader in the global semiconductor industry, known for its cutting-edge wafer-fabrication equipment. With the semiconductor sector at the core of everything from smartphones to medical devices, FabChip’s role in supplying this vital technology was crucial. The equipment FabChip manufactured, however, was often large and complex. When it arrived at […]

Have you ever wondered why your doctor may keep you waiting in the waiting room or why you have to fast before doing a blood test? Let’s see if Lean Six Sigma can give you an answer.

One of the important statistical descriptors of your data is its central tendency. Central tendency can be described using the mean, median and mode of the data. The mean is described as the mathematical center of your data. The median is the physical center of your data, and the mode is the most frequently occurring value in your data.

A flowchart is a diagram of a process, using standard symbols to represent a variety of process activities over a specified timeline.

As the Chinese proverb says, “a picture is worth a thousand words.” The multi-vari chart is such a picture. In a single graph, you will be able to understand the variation of your process. Let’s learn more. 

When faced with multiple decision criteria, how do you prioritize them? Do you flip a coin or use something more structured? You might want to consider using the Analytic Hierarchy Process as a structured format for prioritizing your decisions.

Does Going to Gemba sound like a nice trip to an exotic locale? While not a fancy foreign destination, Gemba is going to where the work is done to learn more about the process. Let’s take a deeper look into what Gemba is about. 

AI (Artificial Intelligence) involves creating systems and algorithms capable of mimicking human intelligence to perform tasks like decision-making, problem-solving, and pattern recognition. It leverages techniques such as machine learning and neural networks to improve through experience. Continuous improvement focuses on systematically enhancing processes, products, or services through incremental changes, using methods like Lean […]

Quality management is the process of ensuring that products and services meet consistent standards of excellence. It encompasses various strategies, tools, and techniques that aim to enhance organizational performance, improve customer satisfaction, and reduce waste. Many businesses around the world have effectively utilized quality management principles to drive significant improvements. Over the years […]

Fractional factorial DOE is a cost- and time-effective designed experimentation statistical tool for understanding the impact of your process inputs on your process outputs. 

What does your process look like from 25,000 feet up in the air? Your extended process view can be described using SIPOC, or supplier, input, process, output, and customer. Let’s get in our plane and go up. 

The use of center points in your designed experiments can be valuable in determining the actual relationship between your input factors and your response variable. Let’s explain this in a little more detail. 

The Bartlett Test is named after the English statistician, Maurice Stevenson Bartlett. The test is also known as the Bartlett’s test for homogeneity of variances. It is most used in doing a 1-way Analysis of Variance (ANOVA). ANOVA is used to determine whether there is any statistical difference between the means of three […]

If you have a non-conforming or defective product coming off your production line, what do you do with it? Utilizing a strategy of containment might be the way to go. Let’s learn more about this. Containment of non-conforming products refers to the actions you take to prevent the distribution or use of products […]