Compară metode

	Testul t pentru eșantioane independente	Testul t pentru o singură eșantion
Domeniu	Statistică	Statistică
Familie	Hypothesis test	Hypothesis test
Anul apariției	1908	1908
Autorul original	Student (W. S. Gosset)	Student (W. S. Gosset)
Tip	Parametric mean comparison	Parametric mean comparison
Sursa seminală	Student (W. S. Gosset) (1908). The probable error of a mean. Biometrika, 6(1), 1–25.	Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25.
Denumiri alternative	two-sample t-test, unpaired t-test, Student t-test, independent groups t-test	single-sample t-test, one-group t-test, one-sample t, Student one-sample t-test
Înrudite	4	3
Rezumat	The independent samples t-test is a parametric hypothesis test that determines whether the means of two independent, unrelated groups differ significantly on a continuous outcome variable. Derived from Gosset's 1908 t-distribution, it is one of the most widely used inferential tests in social, behavioral, biomedical, and experimental sciences.	The one-sample t-test is a parametric hypothesis test that determines whether the mean of a single sample differs significantly from a known or hypothesized population value. Derived from Student's (Gosset's) 1908 t-distribution, it assumes continuous, approximately normally distributed data and is one of the most fundamental tests in applied statistics.