Abstract

SANCHEZ TURCIOS, Reinaldo Alberto. Student's t: Uses and abuses. Rev. Mex. Cardiol [online]. 2015, vol.26, n.1, pp.59-61. ISSN 0188-2198.

Student's t test is based on two premises; first: normality of distribution and second: the independence of the samples. This allows comparing samples N ≤ 30 and/or establishes the differences between the means of the two samples. The mathematical and statistical analysis of the test is frequently minimalized N > 30, using non parametric tests, when the test has enough statistical power.

Keywords : Student's t; normal distribution; statistic.