Many, even most, studies that contain a statistical component use frequentist, also called classical, techniques. The gist of those methods is this: data is collected, a probability model for that data is proposed, a function of the observed data—a statistic—is … Continue Reading How many false studies in medicine are published every year?
In Part I of this post, we started with a typical problem: which of two advertising campaigns was “better” in terms of generating more sales. Campaigns A and B were each tested for 20 days, during which time sales data … Continue Reading Why most statistics don’t mean what you think they do: Part II.
Here’s a common, classical statistics problem. Uncle Ted’s chain of Kill ’em and Grill ’em Venison Burgers tested two ad campaigns, A and B, and measured the sales of sausage sandwiches for 20 days under both campaigns. This was done, … Continue Reading Why most statistics don’t mean what you think they do: Part I.