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Friedman Non Parametric Hypothesis Test

October 10, 2024

The Friedman Non Parametric hypothesis test is an alternative to the one-way ANOVA with repeated measures. Friedman test was developed...

Nominal Group Technique

October 10, 2024

The Nominal Group Technique is a kind of group-based brainstorming that significantly enables participation from all members resulting in more...

Process Performance Pp and Ppk

October 10, 2024

Process Capability How do you know if your process is capable? Process Capability Pp measures the process spread vs. the...

The Six Fix #008: Process Improvement in a Furniture Factory ??

October 10, 2024

Imagine you’re the general manager of a furniture manufacturer. You’re facing excessive production lead time in the factory. I’m sure...

AAF Case Study: Defining Project Scope

October 10, 2024

Welcome back to our case study. Previously we’ve: Kicked off the project. (And here.) Secured sponsor support. Started creating the...

Mistake #3: Trying to Study Everything at Once

October 10, 2024

In a previous email series we covered 2 of the 4 main mistakes I see people make when preparing for...

Partial and Fractional Factorial Design

October 10, 2024

Partial/Fractional Factorial Design. Photo by F. Deventhal Because Full Factorial design experiments are often times cost-prohibitive when a number of treatment...

Cumulative Sum Chart (CUSUM)

October 10, 2024

What is a Cumulative Sum Chart? A cumulative sum chart (CUSUM) is a type of control chart used to detect...

Mood’s Median Non Parametric Hypothesis Test

October 10, 2024

Mood’s median test is a nonparametric test to compare the medians of two independent samples. It is also used to...

Process Capability (Cp & Cpk)

October 10, 2024

Cp and Cpk are considered short-term potential capability measures for a process. In Six Sigma, we want to describe the...