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	स्वतंत्र नमूना टी-परीक्षण	युग्मित नमूना टी-परीक्षण (Paired Samples t-test)
क्षेत्र	सांख्यिकी	सांख्यिकी
परिवार	Hypothesis test	Hypothesis test
उद्भव वर्ष	1908	1908
प्रवर्तक	Student (W. S. Gosset)	Student (W. S. Gosset)
प्रकार	Parametric mean comparison	Parametric mean comparison
मौलिक स्रोत	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.
उपनाम	two-sample t-test, unpaired t-test, Student t-test, independent groups t-test	dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test
संबंधित	4	3
सारांश	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 paired samples t-test is a parametric hypothesis test that compares the means of two related measurements from the same subjects or matched pairs to determine whether the average difference is significantly different from zero. It leverages the dependency between observations to produce a more powerful test than its independent-samples counterpart.