Definición t-test

The t-test is a hypothesis test with which we can test an assumption about an expected value of one or several populations with unknown standard deviations.

The t-test is frequently used in regression analysis. The F-test determines if an obtained dependence is true not only for the sample, but for the population as well. The t-test, on the other hand, tests the significance of each individual variable.

If we just plan to assess the dependence of two variables in a regression analysis, doing one of the two tests will suffice. A normally distributed population is a prerequisite of the t-test. 

Tenga en cuenta que las entradas de nuestro glosario son explicaciones simplificadas de términos estadísticos. Nuestro objetivo es hacerlo accesible para un público amplio, así que puede que algunas definiciones no cumplan los estándares científicos.