Définition 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.
Les définitions de notre encyclopédie sont des explications simplifiées de termes. Notre but est de rendre ces définitions compréhensibles pour un large public. Par conséquent, il est possible que certaines d’entre elles ne soient pas entièrement à la hauteur des standards scientifiques.