Oh, How They Vary!
Last week we talked about normal distribution in your data. This week let’s kick the conversation off with non-normal distribution. There are a few different types of non-normal distribution, let’s take a look. Skewed distribution Skewed data is quite simply, a data distribution that is not symmetrical. Usually the longest tail points should point in […]
6Sigma Stats-Distribution Classes
As we continue our journey in Six Sigma it seems pertinent to discuss the different types of distributions you will see in your analysis. Let’s start with one at a time. The most common distribution is the Normal Distribution and here’s what you should know about it. First, what is a distribution? Simply put, a […]
Measuring Your Capability: Cpk, Ppk, Cp and Pp
As we keep walking down this wonderful world of 6Sigma it’s important that we talk about how capability is measured. We’ve been talking about process capability for a few weeks now, so let’s talk about the capability measurement methods. This week we are going to focus on capability index and process capability. What does it […]
The Value of a Capability Study
We opened last week with Process Capability and before we go full-fledged into that area, I want to pause and put some focus on capability studies. What is a Capability Study? To review from last week, a capability study is a way to ensure that your process is consistent over an extended period of time. […]
MSA 101
We’ve talked about accuracy, repeatability and reproducibility in your MSA’s but now we need to talk about data integrity. Data Integrity Numbers shouldn’t lie, but when they do it is usually because somewhere along the line the integrity of the data didn’t hold up. Integrity Before you begin your analysis there are two questions you […]
