1 Answers
The t-test is any statistical hypothesis test in which the test statistic follows a Student's t-distribution under the null hypothesis.
A t-test is the most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistics follow a Student's t distribution. The t-test can be used, for example, to determine if the means of two sets of data are significantly different from each other.
4 views
Answered