How to compute a standard deviation and control chart when you don’t have raw data

It ought to be easier than this and perhaps I could have found an easier way if I had more patience than the average ant or very young infant. However, I don’t. Here was the

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It ought to be easier than this and perhaps I could have found an easier way if I had more patience than the average ant or very young infant. However, I don’t. Here was the

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Practical Advice to American Airlines on How Not to Suck

Let me begin by acknowledging that anyone who can afford to fly to Trinidad and Tobago to learn more about the culture and ends up pitching a reality show is in the extreme of privileged

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Let me begin by acknowledging that anyone who can afford to fly to Trinidad and Tobago to learn more about the culture and ends up pitching a reality show is in the extreme of privileged

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Charts with CDC Data- A step by step example

Perhaps you have watched the Socrata videos on how to do data visualization with government data sets and it is still not working for you. Here is a step by step example of answering a

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Perhaps you have watched the Socrata videos on how to do data visualization with government data sets and it is still not working for you. Here is a step by step example of answering a

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Excel for regression analysis: What a surprise!

I wouldn’t normally consider Excel for analysis, but there are four reasons I’ll be using it sometimes for the next class I’m teaching. First of all, we start out with some pretty basic statistics, I’m

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I wouldn’t normally consider Excel for analysis, but there are four reasons I’ll be using it sometimes for the next class I’m teaching. First of all, we start out with some pretty basic statistics, I’m

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