Video: Hom 2 yuam kev piv txwv yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
A Hom II yuam kev tau cog lus thaum peb tsis ntseeg qhov tseeb. Khoom qab zib Crush dabneeg. Txuas ntxiv peb tus tswv yug yaj thiab hma piv txwv . Ntxiv dua thiab, peb qhov kev xav tsis tseeb yog tias tsis muaj "tsis muaj hma tam sim no." A yam II yuam kev (lossis cuav tsis zoo) yuav ua tsis muaj dab tsi (tsis yog "hma quaj") thaum muaj hma tam sim no.
Tsis tas li ntawd, Type I thiab Type II yuam kev muab piv txwv li cas?
Hom no yuam kev npe a yam Kuv yuam kev thiab qee zaum hu ua ib yuam kev ntawm thawj hom. Hais txog lub tsev hais plaub piv txwv , ib yam Kuv yuam kev sib raug rau txim rau tus neeg raug foob tsis muaj txim. Hom II yuam kev . Qhov thib ob hom yuam kev yog qhov tsis lees paub qhov tsis tseeb null hypothesis raws li qhov tshwm sim ntawm cov txheej txheem xeem.
Ib yam li ntawd, koj yuav paub li cas yog tias nws hom 1 lossis Hom 2 yuam kev? Nyob rau hauv ntau cov ntsiab lus tseeb, yam 2 yuam kev tshwm sim thaum lub null hypothesis yog cuav thiab koj tom qab tsis kam lees nws. Yog qhov tshwm sim ntawm kev ua a yam 1 yuam kev yog txiav txim siab los ntawm "α", qhov tshwm sim ntawm a yam 2 yuam kev yog "β".
Raws li, piv txwv ntawm hom 1 yuam kev yog dab tsi?
Piv txwv ntawm Ib Hom Kuv yuam kev Lub null hypothesis yog tias tus neeg tsis muaj txim, thaum lwm txoj kev txhaum. Qhov no yuav ua rau cov kws tshawb fawb tsis lees paub lawv qhov kev xav tsis tseeb tias cov tshuaj yuav tsis muaj txiaj ntsig. Yog tias cov tshuaj ua rau qhov kev loj hlob nres, qhov kev txiav txim siab tsis lees txais qhov null, qhov no, yuav yog qhov tseeb.
Koj yuav txo qhov yuam kev 2 li cas?
- Nce tus qauv loj. Ib txoj hauv kev yooj yim tshaj plaws los ua kom lub zog ntawm qhov kev xeem yog kom nce tus qauv loj siv hauv kev sim.
- Nce qib tseem ceeb. Lwm txoj hauv kev yog xaiv cov qib siab ntawm qhov tseem ceeb.
Pom zoo:
Dab tsi yog qhov piv txwv piv txwv hauv kev txheeb cais?
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Hom 2 yuam kev hauv kev txheeb cais yog dab tsi?
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