Ken Feldman

A radar chart, also known as a spider chart, is a great tool to graphically compare multiple outcomes for specific characteristics and criteria. 

Is the variation in your process data to be expected, or has something special occurred? A control chart will give you the answer. The X-bar and R chart will give you the details.

There are several statistical tests which assume that independent data sets have equal, similar or equivalent variances. Violating this assumption could render any statistical conclusions invalid. 

When things go wrong in the process, how do you know? And how do you know what to do?

The Toyota Production System (TPS) serves as the foundation for Lean Manufacturing. Let’s explore this powerful method for improving your processes.  The Toyota Production System (TPS) is a manufacturing philosophy and a set of management practices developed by the Toyota Motor Corporation. It emphasizes continuous improvement, just-in-time production, and efficient use of resources, […]

The Need for Adapting LSS Training The traditional LSS approach relies heavily on human expertise for data collection, analysis, and decision-making. While effective, this can be time-consuming, prone to errors, and limited in scope. AI, on the other hand, can process vast amounts of data in real-time, identify patterns that may not be […]

Quality management is an essential aspect of any business that strives to deliver products and services that meet or exceed customer expectations. The core principles of Quality Management were developed as part of the International Organization for Standardization (ISO) seven principles of quality management. Traditional quality management systems like Total Quality Management (TQM) […]

You will often see attribute data and discrete data being used interchangeably. At some level, they are similar. But, if we dive a little deeper, you’ll see that there’s a bit more distinction than meets the eye.

Process time is the time it takes for one or more inputs to be transformed into a finished product or service by a business process.

Do you possess a crystal ball to see what the future brings for your organization? Probably not, but you do have a statistical version of a crystal ball by using trend analysis. 

NORMSINV is an Excel function that provides the INVERSE of the cumulative standard normal distribution. Let’s learn how it works.

The null hypothesis, written as Ho is a subset of the larger topic of Hypothesis Testing. The null hypothesis is a statement about a specific condition of your data and allows you to draw important conclusions about that data.

Not all your data will have a normal distribution. Sometimes, the curve is taller or shorter than a theoretical  normal distribution. Does that mean you have a problem? We can answer that question by learning a little bit more about kurtosis and the platykurtic distribution.

The concept of a confidence band is usually associated with regression analysis. We will also explain why a confidence band is not the same as a confidence interval.

Are you hearing voices? If it’s in a business context, then there is nothing to worry about — and it might even be a good thing. Let’s listen in to the voice of the process and hear what it has to say.

While you hope everything goes smoothly and as planned, sometimes you have to make a change in your existing product or product design. The engineering change request is the form you use to initiate the changes.

Background Company X (fictional name) is a multi-billion-dollar retail giant, known for offering an expansive range of Do It Yourself (DIY) goods and services. With hundreds of retail outlets scattered across the country, the company’s retail division was the backbone of its operations, responsible for generating a significant portion of its revenue. However, in recent […]

You may think turnaround time has decreased from your baseline as a result of a process improvement. But has it really? The t statistic is one way to find the answer to that question.

“So much to do, and so little time to do it” might be a good way to describe multi-generational product planning, or MGPP. Sometimes it makes sense to stage your improvements over a longer period of time.

Z bench is not where Zorro rested after saving another town. There are a number of Six Sigma terms associated with the letter Z, such as Z score, Z bench long term, Z bench short term, and Z shift. Let’s explore the A to Zs about Z.

When doing Design of Experiments (DOE), replicates become an important consideration for improving the accuracy of your experiment. Let’s learn a little more about replicates. In Design of Experiments (DOE), a replicate is a single repetition or run of an experiment, with all conditions and factors kept constant except for the treatment being […]

How much improvement do you expect from your projects? Is 5% ok? How about 15%? Breakthrough improvement will be 70% or more. Let’s see how breakthrough improvement works. 

In today’s fast-paced, customer-driven environment, businesses must continually strive to enhance quality while reducing inefficiencies. Quality management is not merely about ensuring product reliability but involves a holistic approach to improve all aspects of an organization. To help organizations manage quality effectively, the International Organization for Standardization (ISO) outlines seven key principles of […]

As the name implies, capability analysis is an analysis of the ability of your process to meet your customer’s expectations and requirements. There are a number of calculated metrics which can be used to help you do your capability analysis.