Scientists’ grasp of confidence intervals doesn’t inspire confidence

By Tom Siegfried, 16:31 PM July 2, 2014

Sometimes it’s hard to have confidence in science. So many results from published scientific studies turn out to be wrong.

Part of the problem is that science has trouble quantifying just how confident in a result you should be. Confidence intervals are supposed to help with that. They’re like the margin of error in public opinion polls. If candidate A is ahead of candidate B by 2 percentage points, and the margin of error is 4 percentage points, then you know it’s not a good bet to put all yo...

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