What do Icelandic volcanic ashes have in common with an innocent Brazilian man wrongly shot to death in a subway station by the London Metropolitan Police because they misidentified him as one of the ...

I regularly teach courses in statistics. And make no mistake about it, I LOVE teaching statistics. I’ve taught this class since 1996, have (with Sara Hall) co-authored a textbook on the topic, and I’d ...

Despite its common practice, statistical hypothesis testing presents challenges in interpretation. For instance, in the standard frequentist framework there is no ...

In single-arm trials, false-positive error rates (type I error) were 2 to 4 times those projected when modest drift or patient selection effects (eg, 5% absolute ...

The American Statistician strives to publish articles of general interest to the statistical profession on topics that are important for a broad group of statisticians, and ordinarily not highly ...

Figure 1: Data normalization prior to applying t-test and its consequences on type I and type II error rates. We investigated the consequences of using normalization ...

As many people have noticed, Rasmussen’s polls this year have tended to be more favorable to Republican candidates and causes than those of most other polling outfits. This does not necessarily imply ...