Video: Dab tsi yog qhov zoo ntawm kev haum hauv kev txheeb cais?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov zoo ntawm haum test yog a txheeb cais hypothesis test kom pom cov ntaub ntawv zoo npaum li cas haum kev faib tawm los ntawm cov pej xeem nrog ib txwm faib.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov zoo ntawm kev haum xeeb qhia rau koj?
Cov zoo ntawm haum kev xeem yog siv los ntsuas yog cov qauv ntaub ntawv haum rau kev faib tawm los ntawm qee cov pejxeem (piv txwv li cov pejxeem uas muaj kev faib tawm ib txwm lossis ib qho nrog Weibull faib). Hauv lwm lo lus, nws qhia rau koj yog tias koj cov ntaub ntawv piv txwv sawv cev rau cov ntaub ntawv koj yuav cia siab tias yuav nrhiav tau hauv cov neeg tiag tiag.
Ib yam li ntawd, koj ua li cas piv qhov zoo ntawm kev haum? Lub tswv yim qab lub zoo ntawm haum kev ntsuam xyuas yog ntsuas qhov "nruab deb" ntawm cov ntaub ntawv thiab kev faib khoom uas koj tab tom sim, thiab piv qhov kev ncua deb mus rau qee tus nqi pib. Yog tias qhov kev ncua deb (hu ua qhov ntsuas ntsuas) tsawg dua tus nqi pib (tus nqi tseem ceeb), haum suav tias yog qhov zoo.
Tsis tas li ntawd, dab tsi yog qhov zoo ntawm kev haum nyob rau hauv regression?
A zoo-ntawm-fit kev xeem, feem ntau, yog hais txog kev ntsuas seb cov ntaub ntawv pom tau zoo npaum li cas rau qhov haum (xav tias) qauv . Zoo li hauv linear regression , hauv essence, the zoo-ntawm-fit test piv cov nqi pom zoo rau qhov xav tau (tsim los yog kwv yees) qhov tseem ceeb.
Tus nqi P txhais li cas?
Hauv kev txheeb cais, cov p - tus nqi yog qhov tshwm sim ntawm kev tau txais cov txiaj ntsig pom ntawm qhov kev sim, xav tias qhov kev xav tsis tseeb yog yog lawm. Ib qho me me p - tus nqi txhais tau tias tias muaj yog cov pov thawj muaj zog nyob rau hauv kev pom zoo ntawm lwm txoj kev xav.
Pom zoo:
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