Cov txheej txheem:
Video: Koj ua li cas ob qho qauv t xeem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A ob - piv t - xeem yog siv rau xeem qhov txawv (d0) nruab nrab ob pej xeem txhais tau tias. Ib daim ntawv thov siv yog los txiav txim seb cov txhais tau li cas sib npaug.
Ntawm no yog yuav ua li cas siv qhov kev xeem.
- Txhais hypotheses.
- Qhia qhov tseem ceeb ntawm qib.
- Nrhiav qib kev ywj pheej.
- xam xeem txheeb cais .
- Suav P-tus nqi.
- Ntsuam xyuas null hypothesis.
Ua raws li qhov no, koj yuav ua li cas nrhiav tau tus nqi t rau ob qho qauv?
Cov kauj ruam
- Txiav txim siab ib qho null thiab alternate hypothesis.
- Txiav txim siab ib ntus kev ntseeg siab.
- Muab txhua tus pej xeem rau ib qho ntawm ob cov ntaub ntawv teev tseg.
- Txiav txim siab tus nqi n1 thiab n2.
- Txiav txim siab qib ntawm kev ywj pheej.
- Txiav txim siab txhais tau tias ntawm ob qho piv txwv.
- Txiav txim siab qhov sib txawv ntawm txhua cov ntaub ntawv teev.
Ib tug kuj yuav nug, koj yuav ua li cas daws qhov kev xeem t ib kauj ruam? Cov kauj ruam ntawm a t - Kauj ruam 1: Txiav txim siab tus qauv piv txwv, pej xeem txhais tau tias, tus qauv qauv sib txawv thiab cov qauv loj rau cov ntaub ntawv. Xam cov nqi uas tsis muab. Kauj ruam 2: xam cov t -Score rau cov ntaub ntawv siv cov t - tus qhab nia formula. Kauj ruam 3: Qhia qhov tseem ceeb t - qhab nias.
Tsis tas li ntawd, qhov txawv ntawm ib qho qauv thiab ob qho qauv t kuaj yog dab tsi?
Qhov 2- piv t - xeem coj koj qauv cov ntaub ntawv los ntawm ob pab pawg thiab boils nws mus rau lub t - tus nqi. Cov txheej txheem zoo ib yam li 1- piv t - xeem , thiab koj tseem tuaj yeem siv qhov sib piv ntawm cov teeb liab-rau-suab nrov piv. Tsis zoo li tus khub t - xeem , ua 2- piv t - xeem xav kom muaj pab pawg neeg ywj pheej rau txhua tus qauv.
Koj nrhiav t nqi li cas?
Rau nrhiav ib qho tseem ceeb tus nqi , saib koj qhov kev ntseeg siab nyob rau hauv kab hauv qab ntawm lub rooj; qhov no qhia rau koj tias kab ntawv twg t - rooj koj xav tau. Txiav kab ntawv no nrog kab rau koj df (degrees ntawm kev ywj pheej). Tus naj npawb koj saib yog qhov tseemceeb tus nqi (los yog t *- tus nqi ) rau koj lub sijhawm tso siab.
Pom zoo:
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