KI for μ1−μ2\mu_1-\mu_2μ1−μ2:
Klikk for å snu kortet
(Xˉ1−Xˉ2)±tS12/n1+S22/n2( \bar{X}_1 - \bar{X}_2 ) \pm t\sqrt{S_1^2/n_1 + S_2^2/n_2}(Xˉ1−Xˉ2)±tS12/n1+S22/n2. Variansene adderes for uavhengige utvalg.
Space / Enter for å snu