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 […]
Variation: The Sources
In metrics the most honest finding will be that your metrics will have degrees of variation. Understanding where and how those metrics occur, is the key to using your data in a forward thinking strategy. Let’s start with something simple, like toy production. We are going to track some standard variation sources. Variation Sources Within […]
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. […]
