September 2012
Beginner
408 pages
9h 47m
English
Content preview from Six Sigma For Dummies, 2nd Edition
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Chapter 16
Making Confident Decisions
In This Chapter
Distinguishing populations and samples
Surveying sampling distributions and the central limit theorem
Establishing confidence intervals for population means, variances, and proportions
Which truck is better, Ford or Chevy? Which spread is better for you, butter or margarine? From public opinion polls to medical treatment reports to climate studies, the media literally bombards you with “scientific” information on these types of issues. Unfortunately, you don’t always have sufficient evidence or the analytical skills you need to make the best choices. But you can make the best choices when it comes to your Six Sigma processes.
In this chapter, we share the tried-and-true methods to help you make the best decisions in your business and feel confident about them. After all, when you’re operating a business, finding the truth within data is paramount to consistent success. Is Process A better than Process B? Which marketing plan is more effective? Which facility is operating with higher quality? Has our new warehouse really reduced inventory costs? With this chapter, you can be the authoritative, in-the-know source.
Introducing Populations ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.