Vim li cas siv unpaired t test?

Cov txheej txheem:

Vim li cas siv unpaired t test?
Vim li cas siv unpaired t test?

Video: Vim li cas siv unpaired t test?

Video: Vim li cas siv unpaired t test?
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Ib qho tsis sib xws t-test yog siv los piv qhov nruab nrab ntawm ob pawg neeg ywj pheej. Koj siv qhov kev sib tw t-test tsis sib xws thaum koj sib piv ob pawg sib txawv nrog qhov sib npaug sib npaug.

Thaum twg koj siv unpaired thiab paired t-test?

Qhov txawv yog qhov yooj yim heev: unpaired t-test yog siv los sib piv txhais tau tias kuaj pom ntawm cov qauv ywj pheej, zoo li hauv koj rooj plaub. Paired t-test yog siv thaum koj tau ntsuas pom ntawm tib tus qauv (kev soj ntsuam ua ntej) lossis hauv cov qauv uas tuaj yeem cuam tshuam rau lwm tus (niam-tub, poj niam-tus txiv).

Dab tsi yog qhov kev xav ntawm qhov kev xeem tsis tau ua ke?

Cov kev xav ntau uas tau ua thaum ua t-test suav nrog cov hais txog qhov ntsuas ntsuas, ntsuas qhov ntsuas, qhov qub ntawm cov ntaub ntawv faib, qhov txaus ntawm cov qauv loj, thiab sib npaug ntawm qhov sib txawv nyob rau hauv tus qauv sib txawv.

Koj paub li cas yog cov ntaub ntawv yog khub lossis tsis ua khub?

Kev sim kev tshawb fawb feem ntau suav nrog kev sib piv ob lossis ntau pawg ntawm cov ntaub ntawv. Cov ntaub ntawv no tau piav qhia tias tsis muaj khub lossis muaj kev ywj pheej thaum cov txheej txheem ntawm cov ntaub ntawv tshwm sim los ntawm cov neeg sib cais lossis ua khub thaum nws tshwm sim los ntawm tib tus neeg ntawm cov ntsiab lus sib txawv hauv lub sijhawm.

Kev xeem t-test ua haujlwm li cas?

Kev tsis sib xws t xeem ua haujlwm los ntawm kev sib piv qhov sib txawv ntawm txhais tau tias nrog tus qauv yuam kev ntawm qhov txawv, suav los ntawm kev sib txuas cov qauv yuam kev ntawm ob pawg. Yog hais tias cov ntaub ntawv yog khub los yog matched, ces koj yuav tsum xaiv ib tug khub t test xwb.

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