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. 

Hypothesis testing is a branch of statistics in which, using data from a sample, an inference is made about a population parameter or a population probability distribution.

Have you ever had to shut down your manufacturing line because major components haven’t arrived from your supplier? Have you ever had to rent extra warehouses for your finished goods? Just-in-time (JIT) manufacturing would prevent that from happening. Let’s see how that works.

In a box plot, it is easy to see the range of where 50% of your data lies. Let’s examine this a little further by describing the interquartile range. Quartiles can be defined as dividing your data into 4 parts or quarters of approximately equal size. You can define the 4 parts in terms of […]

In-control is not referring to the behavior of your children. It’s about whether your process is exhibiting common or special cause variation. Let’s explore how this works.

If your organization is too impatient to use a formal DMAIC approach to continuous improvement then Kaizen may be the tool for you. 

Will having a Lean Six Sigma Green Belt help you break boards? No. But a trained and experienced Green Belt will help improve what your organization does so you can defeat waste, process defects, and much more. Let’s see how.

How does your organization track and monitor organizational performance? Do you have key metrics that you frequently look at to make decisions? Using Key Performance Indicators (KPIs) is a common method for tracking your most important metrics. Let’s see how. A Key Performance Indicator (KPI) is a measurable value that demonstrates how effectively a company […]

Does your organization just focus on today’s operational and tactical issues, or is there a process for developing a strategic plan for the future? Hoshin Kanri is a method for ensuring an organization’s strategic goals drive progress and action at every level within that organization. 

Now that you have brainstormed and gathered a list of random ideas, how do you make sense of them? KJ is a tool for helping you establish the themes and relationships between your ideas. 

Are all your organization’s problems and issues of equal importance? Probably not. How should you handle those that are the most critical and important? Let’s find out. A Key Business Issue (KBI) refers to a critical problem or challenge that your organization faces, which can significantly impact your performance, growth, or competitiveness. KBIs are specific […]

Is your Lean Six Sigma training accomplishing what you want it to do? How do you know? Those questions can be answered by using the Kirkpatrick Model of Evaluation. Let’s see how.

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. 

You want to make good data-driven decisions, but can you trust your data? Is the measurement system you used to gather the data giving you precise and consistent measurements? A Gage R&R study will answer your questions. 

The word factor, in the context of Design of Experiments (DOE), has several other names. Let’s learn more about what a factor is and how it is used in DOE. One of the most common formulas in statistics is Y = f(X) which states that Y is a function of X. If you define Y […]

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.

STOP THE PRESSES! Jidoka will immediately stop equipment upon discovering an abnormality in the process. Let’s explore this a little deeper.

It is generally easier to understand what your data is telling you if you can visualize it rather than view it in rows and columns of numbers. A frequency plot is a great tool for doing that. A frequency plot is a graphical representation of the distribution of continuous data based on how often a […]

Full factorial DOE is one of the most powerfully designed experimentation statistical tools for understanding the impact your process inputs have on your process outputs. 

Whether you are talking about the F-value, F-test, F-statistic or F distribution they all revolve around the same concept of using variances to make statistical decisions about your data.

The empirical rule is a simple way to understand the distribution of your data values if they come from a normal distribution. 

Enterprise Resource Planning (ERP) is a business management system that integrates all aspects of a company’s operations, including finance, human resources, manufacturing, supply chain management, and customer relationship management. ERP software allows businesses to automate and streamline their processes, creating a unified and efficient system that improves productivity and reduces errors. It provides a centralized […]

You have probably heard of the acronym PDCA (Deming Cycle) but have you heard of FOCUS PDCA? Read this article and you will understand what it is.

Manually changing parts in and out of a machine can be time-consuming and present a safety issue. Hanedashi solves that problem by automatically doing almost everything that the operator would do in a manual operation.