Dab tsi yog qhov kev xeem hauv kev txheeb cais siv rau?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Ib t- xeem yog hom inferential statistic siv los txiav txim seb puas muaj qhov sib txawv tseem ceeb ntawm txoj kev ntawm ob pawg, uas tej zaum yuav muaj feem cuam tshuam nrog qee yam nta. Cov t- xeem yog ib qho ntawm ntau kev sim siv rau lub hom phiaj ntawm hypothesis kuaj hauv kev txheeb cais . xam t- xeem xav tau peb cov ntaub ntawv tseem ceeb.

Raws li txoj cai, kuv yuav tsum siv qhov kev xeem txheeb cais dab tsi?

Kev txheeb xyuas txheeb cais siv SPSS

• Ib qho piv txwv t-test. Ib qho piv txwv t-test tso cai rau peb los ntsuas seb tus qauv txhais tau li cas (ntawm ib qho kev faib tawm ib txwm sib txawv) txawv ntawm tus nqi hypothesized.
• Binomial xeem.
• Chi-square zoo ntawm haum.
• Ob tus qauv ywj pheej t-test.
• Chi-square test.
• Ib txoj kev ANOVA.
• Kruskal Wallis xeem.
• Paired t-test.

Tsis tas li ntawd, 3 hom kev xeem t yog dab tsi? Muaj peb yam tseem ceeb ntawm t-test:

• Ib qho Independent Samples t-test piv cov txhais tau tias rau ob pawg.
• Paired qauv t-test piv txhais tau hais tias los ntawm tib pab pawg ntawm cov sij hawm sib txawv (hais, ib xyoos sib nrug).
• Ib qho piv txwv t-test ntsuas qhov txhais tau tias ntawm ib pab pawg tawm tsam tus paub txhais tau tias.

Tib neeg kuj nug, t statistic qhia koj li cas?

Cov t -tus nqi ntsuas qhov loj ntawm qhov sib txawv ntawm qhov sib txawv ntawm koj cov ntaub ntawv piv txwv. Muab lwm txoj kev, T yog tsuas yog xam qhov sib txawv sawv cev nyob rau hauv units ntawm tus qauv yuam kev. Qhov loj dua qhov loj ntawm T , qhov ntau dua cov pov thawj tawm tsam null hypothesis.

Qhov kev xeem Student t siv rau dab tsi?

Cov t - xeem (tseem qee zaum hu ua Tub kawm t - xeem ) yog siv los txiav txim qhov tseem ceeb ntawm qhov sib txawv ntawm txoj kev ntawm ob pawg ntawm cov ntaub ntawv. Hauv essence, lub xeem sib piv qhov sib txawv ntawm txhais tau tias txheeb ze rau qhov pom random variations hauv txhua pawg.