Student's t-test
noun
- a test for statistical significance that uses tables of a statistical distribution called Student’s t-distribution, which is that of a fraction (t) whose numerator is drawn from a normal distribution with a mean of zero, and whose denominator is the root mean square of k terms drawn from the same normal distribution (where k is the number of degrees of freedom).
Origin:
early 20th century: Student, the pseudonym of William Sealy Gosset (1876–1937), English brewery employee