reductions - Business Performance Improvement (BPI)

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April 25, 2011November 11, 2019 bizpi

Cost savings from process improvements can be misleading

I’ve been to many conferences, and have seen lots of companies claim cost savings and metric improvements that are very

Lean Six Sigma Bursts

Lean Six Sigma Bursts

We share our takes and thoughts on a variety of topics related to process improvement (specifically Lean and Six Sigma methods), Bursts are rapid improvement activities, so this sounded like a good word to use for these short audio clips. We’ll try to keep them under 5 minutes each.

The following was a clip from a recent presentation, where I discuss how hypothesis testing can help you draw more statistically valid conclusions from data, and avoid misleading or incorrect conclusions.

I share two examples. The first was a data set from the Denver Sheriff's Department, where they graphed and analyzed intake use of force incidents, but their conclusions don't seem to match the graphic.

The 2nd example was data I pulled for a nonprofit I ran that showed the day of the week and time of day had no impact on click through rates on our monthly email newsletter.

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E118: Real-life Examples of Hypothesis Testing

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