Mathematics
The t-Distribution and Its Role in Small-Sample Inference
Quick fact
The t-distribution was introduced by William Sealy Gosset in 1908 under the pseudonym 'Student' to solve a brewing problem: estimating the quality of beer when only a few samples were available. Its shape changes with sample size, providing accurate confidence intervals that the normal distribution cannot.
Why this is interesting
You’ve probably heard of the normal (bell) curve, but when your sample is tiny, relying on it can be a big mistake. So why do statisticians use a different curve just for small samples?