Hypothesis

Tus Sau: Peter Berry
Hnub Kev Tsim: 18 Lub Xya Hli Ntuj 2021
Hloov Hnub: 12 Tau 2024
Anonim
Intro to Hypothesis Testing in Statistics - Hypothesis Testing Statistics Problems & Examples
Daim Duab: Intro to Hypothesis Testing in Statistics - Hypothesis Testing Statistics Problems & Examples

Nws tau lees paub tias yog kev xav, nyob rau hauv tus txheej txheem ntawm kev tshawb fawb tshawb fawb, mus rau lub tswv yim uas tshwm sim thiab tau npaj siab los txheeb xyuas los ntawm kev sim. Qhov kev xav yog ib qho ntawm thawj lub sijhawm ntawm cov txheej txheem muaj tswv yim ntawm tus kws tshawb fawb, tab sis nws tseem yog qhov tseem ceeb tshaj plaws: nws yog lub hauv paus uas cov txheej txheem tshawb nrhiav tau qhia, thiab yog li nws yuav ua tsis tau yam tsis muaj nws. ccais tus neeg tshawb nrhiav zoo.

Tau kawg, kev sim raug yog qhov tseem ceeb kom tau txais txiaj ntsig zoo, tab sis cov uas tsis muaj kev paub (thiab kev paub dhau los, qhov tseem ceeb rau qhov teeb meem no) ua zoo hypotheses, Kuv tsis yog ib tus kws paub tshwj xeeb.

Yam ntxwv ntawm qhov kev xav

  • Epistemology ntawm kev tshawb fawb tau pom zoo tias txhua qhov kev xav yog kev sib txuas ntawm ob lub ntsiab lus: A thiab B. Nws tuaj yeem yog ib chav nyob, lossis chav nyob thiab pab pawg. Cov kev xav tsim kom muaj kev sib raug zoo ntawm ob yam no, lossis qee yam uas tshwm sim rau ib qho los ntawm ib yam uas tshwm sim rau lwm qhov.
  • Qhov kev sib raug zoo muab los ntawm qhov kev xav yuav tsum ua tau raws li qhov ua tau ua pov thawj, yog li cov ntu ntawm kev sim tsis tuaj yeem tsim kev sib raug zoo uas tsis yog qhov tseeb. Qhov kev xav yuav yog qhov tseeb uas nws tau ua tiav, thiab nws yuav yog kev paub txog txuj ci yog tias nws tuaj yeem nthuav dav rau txhua lub sijhawm thiab chaw, qhia meej txog cov kev xav lossis cov xwm txheej ntawm kev thov.

Cov kauj ruam rau kev nthuav qhia qhov tseeb ntawm qhov kev xavs


  1. Txhais lub ncauj lus kom ntxaws.
  2. Tsim cov lus nug tshawb nrhiav.
  3. Txhim kho cov lus nug txhawm rau txwv ib qho kev thov tus kheej.
  4. Nkag mus rau thawj qhov kev nyeem kom ntxaws txaus los ua kom tiav qhov kev xav.
  5. Sau nws, raws li txoj hauv kev kom muaj qhov muaj txiaj ntsig ntawm qhov kev xav tau txiav txim siab.

Nws kuj tseem hu ua kev xav rau txhua yam kwv yees, tsis hais seb qhov kev txheeb xyuas yog ntawm kev tshawb nrhiav thiab sim lossis nws tsuas yog ib lub tswv yim, uas nws qhov kev paub tsis meej yog vim tsis muaj peev xwm paub txog vim li cas los xij: txhua qhov kev thov uas tau ua los ntawm qhov xwm txheej uas muaj tsis muaj qhov tseeb, nws suav tias yog a daim ntawv qhia hypothetical.

Yog li, cov npe hauv qab no yuav suav nrog nees nkaum tus piv txwv ntawm kev xav. Thawj kaum yuav yog kev xav ntawm kev tshawb fawb, thaum zaum thib ob yuav yog qhov kev kwv yees uas tau tsa los ua kev xav.


  1. Kev haus luam yeeb hauv cov hluas thaum ntxov yog plaub npaug ntau dua li cov neeg laus.
  2. Cov zej zog uas muaj teeb meem tsawg hauv zej zog yog tib lub sijhawm cov zej zog uas muaj lub siab nyiam tshaj plaws rau kev tua tus kheej thiab kev nyuaj siab.
  3. Cov tsheb niaj hnub no siv 20% lub zog ntau dua li lawv tau ua nees nkaum xyoo dhau los.
  4. Raws li qhov siab nce, qhov kub ib puag ncig poob qis.
  5. Aluminium muaj qhov kub yaj ntawm 660 ° C.
  6. Ib qho txheej txheem khoom noj khoom haus autotrophic tseem yuav muaj cov duab hluav taws xob.
  7. Qhov sib npaug ntawm cov xwm txheej ntawm ob txhais ceg yog sib npaug ntawm cov xwm txheej ntawm hypotenuse.
  8. Cov kev tswjfwm kev tswjfwm ruaj khov tshaj plaws yog cov uas muaj kev tswjfwm nruj tshaj plaws thiab nruj tshaj plaws.
  9. Kev txo qis hauv cov nyiaj pab yuav tsim kev lag luam qis dua 4%.
  10. Lub cev tag nrho lossis ib nrab hauv cov kua dej zoo li qub yuav raug thawb nrog lub zog sib npaug ntawm qhov hnyav ntawm qhov ntim ntawm cov kua dej txav los ntawm cov khoom ntawd.
  1. Kuv qhov kev xav yog tias nws tau dag kuv nrog nws tus kws qhia ua yeeb yam.
  2. Ntau tus ntaus guitar tau zoo, tab sis kuv tsis xav tias leej twg ua si nrawm li nws tau ua.
  3. Thaum qib kev tsis sib haum xeeb hauv zej zog nce ntxiv, koj cov kev tshaj tawm yuav tsis ua haujlwm ntxiv lawm.
  4. Yog tias kuv mob siab rau, kuv yuav tuaj yeem yuav lub tsheb tshiab.
  5. Vim los nag, tej zaum peb yuav tsis muag ntau daim pib ntawm kev seev cev niaj hnub no.
  6. Peb ntseeg tias koj tsis muaj nuj nqis, yog li peb tsis tuaj yeem qiv nyiaj ntau rau koj.
  7. Tus neeg foob foob ntseeg tias tus neeg ua zaub mov tau ua phem rau tus poj niam yav dhau los, siv qhov kev daws teeb meem rau nws cov tshuaj yej yav tav su.
  8. Lub tsheb ciav hlau tsis dhau mus ntxiv lawm, nws yuav muaj tseeb tsis tshwm sim kom txog rau thaum kev tawm tsam nom tswv tom ntej.
  9. Kuv xav tias koj tsuas yog tuaj ntsib kuv thaum koj xav tau qee yam.
  10. Kuv tsis tau pom kuv tus miv tau ntau lub hlis, kuv qhov kev xav yog tias nws tau ploj hauv zej zog.



Peb Pom Zoo

Cov lus uas xaus hauv -anza
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