I've lost count of the lesson numbers. The definition of a p-value, here phrased in the incorrectly named "test of difference in means", is: Given the truth of a probability…

Class is, thank God, rapidly coming to an end. I am sure we are all grateful. Here's an addendum to yesterday; but only briefly explained. Because of the crush of…

Statistics is Beautiful? From reader Yeah, Yeah comes a link to a Wired article which assures us we should "Learn the Language of Data." It's not a pretty language, but…

In so far as I have a coherent philosophy of statistics, I hope it is "robust" enough to cope in principle with the whole of statistics, and sufficiently undogmatic not…

Occam's razor: The simplest hypothesis is usually the best. Simplest is easy to understand, and non-controversial, or relatively so. Consternation creeps in with usually. Before that, first understand what is…

Science says this, science says that. There is no more loquacious entity these days than science. What is it? Climatologists talk of the science. Physicists compliment by saying a fellow…

Twitter @ceptional reminded me of this post, which I had forgotten. Since it is highly relevant to The Great Bayesian Switch, I decided to repost. Some minor errors in grammar…

In last night's Republican debate, the candidates were asked if they could eliminate just one federal agency, which one would it be? Herman Cain chose the EPA: The first --…