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# Student's t-test

noun a test for statistical significance based on 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 a number of terms drawn from the same normal distribution.
Origin
1930s: Student, the pseudonym of William Sealy Gosset, English brewery employee, who devised the test.

English new terms dictionary. 2014.

### Look at other dictionaries:

• Student's t-test — A t test is any statistical hypothesis test in which the test statistic follows a Student s t distribution if the null hypothesis is supported. It is most commonly applied when the test statistic would follow a normal distribution if the value of …   Wikipedia

• Student's t-test — /tee test /, Statistics. a test for determining whether or not an observed sample mean differs significantly from a hypothetical normal population mean. [1945 50; see STUDENT S T DISTRIBUTION] * * * ▪ statistics       in statistics, a method of… …   Universalium

• Student's t-test — /tee test /, Statistics. a test for determining whether or not an observed sample mean differs significantly from a hypothetical normal population mean. [1945 50; see STUDENT S T DISTRIBUTION] …   Useful english dictionary

• Student's t test — noun any statistical hypothesis test in which the test statistic has a Students t distribution if the null hypothesis is true Syn: Students t, t test See Also: Students t distribution …   Wiktionary

• Student's t-test — noun Date: 1935 t test …   New Collegiate Dictionary

• Student's t test — see significance Pseudonym of W. S. Gosset (1876 1937), British statistician …   Medical dictionary

• Student's t test — see significance [Pseudonym of W. S. Gosset (1876–1937), British statistician] …   The new mediacal dictionary

• Student's t-distribution — Probability distribution name =Student s t type =density pdf cdf parameters = u > 0 degrees of freedom (real) support =x in ( infty; +infty)! pdf =frac{Gamma(frac{ u+1}{2})} {sqrt{ upi},Gamma(frac{ u}{2})} left(1+frac{x^2}{ u} ight)^{ (frac{… …   Wikipedia

• Student (disambiguation) — A student is a school or class attendee.Student may also mean:*The pseudonym of William Sealey Gosset *Student s t test, a statistical technique *Student s t distribution, a probability distribution * THE STUDENT S, former name of the Japanese… …   Wikipedia

• Test anxiety — is a psychological condition in which a person experiences distress before, during, or after an exam or other assessment to such an extent that this anxiety causes poor performance or interferes with normal learning.ymptoms*Physical headaches,… …   Wikipedia