Student T-Test

The Student T-Test is any statistical hypothesis test in which the test statistic follows a Student's t-distribution under the null hypothesis. It can be used to determine if two sets of data are significantly different from each other.

Uses
The most common uses for the Student's T-Tests are:
 * one-sample location tests to see if the mean of a population has a value in a null hypothesis.
 * A two-sample location test of the null hypothesis such that the means of the two populations are equal.
 * A test of the null of the hypothesis that the difference between two responses measured on the same statistical unit has a mean value of zero.
 * A test to see if the slope of a regression line differs significantly from 0.