Cov txheej txheem:

Yuav ua li cas koj thiaj nrhiav tau cov ntaub ntawv xeem rau Chi Square hauv StatCrunch?
Yuav ua li cas koj thiaj nrhiav tau cov ntaub ntawv xeem rau Chi Square hauv StatCrunch?

Video: Yuav ua li cas koj thiaj nrhiav tau cov ntaub ntawv xeem rau Chi Square hauv StatCrunch?

Video: Yuav ua li cas koj thiaj nrhiav tau cov ntaub ntawv xeem rau Chi Square hauv StatCrunch?
Video: YUAV COJ LI CAS TU NEEG KOJ HLUB THIAJ NCO KOJ 2024, Hlis ntuj nqeg
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Chi-Square Test rau kev ywj pheej siv StatCrunch

  1. Koj yuav tsum xub nkag mus rau cov ntaub ntawv, nrog rau kab thiab kab ntawv.
  2. Xaiv Stat > Tables > Contingency > with summary.
  3. Xaiv cov kab rau cov suav suav.
  4. Xaiv kab rau kab sib txawv.
  5. Nyem Next.
  6. Kos "Xav Tau Txais" thiab xaiv xam.

Hais txog qhov no, koj ua li cas thiaj nrhiav tau chi square statistic?

Sau cov chi square statistic x2 los ntawm kev ua tiav cov kauj ruam hauv qab no:

  1. Rau txhua tus lej pom hauv lub rooj rho tawm tus lej xav tau (O - E).
  2. Square qhov txawv [(O -E)2].
  3. Faib cov squares tau rau txhua lub cell hauv lub rooj los ntawm tus lej xav tau rau lub cell [(O - E)2 / E].

Qhov thib ob, dab tsi yog tus qauv rau kev xeem ntawv txheeb cais? Txheem xeem txheeb cais yog siv nyob rau hauv hypothesis kuaj . Tus general tus qauv formula yog: Standardized xeem txheeb cais : ( txheeb cais -parameter) / (tus qauv sib txawv ntawm qhov txheeb cais ). Cov qauv los ntawm nws tus kheej tsis txhais tau ntau, tshwj tsis yog tias koj tseem paub peb hom ntawv loj ntawm cov kev sib npaug rau z-cov qhab nia thiab t-cov qhab nia.

Kuj Paub, koj ua li cas qhov zoo ntawm kev xeem haum ntawm Statcrunch?

Chi-Square Goodness-of-Fit Test siv StatCrunch

  1. Koj yuav tsum tau suav cov suav uas xav tau raws li qhov xav tau kev faib tawm.
  2. Nkag mus rau cov suav suav hauv thawj kab, thiab cov kev suav uas xav tau hauv kab thib ob.
  3. Xaiv Stat > Goodness-of-fit > Chi-Square test.
  4. Xaiv cov kab rau cov suav suav.

Peb ua li cas thiaj nrhiav tau tus nqi p?

Yog tias koj qhov kev xeem txheeb cais tau zoo, ua ntej nrhiav Qhov tshwm sim uas Z yog ntau dua li koj qhov kev xeem statistic (saib koj cov ntaub ntawv xeem ntawm Z-table, nrhiav nws qhov yuav tshwm sim, thiab rho tawm ntawm ib qho). Tom qab ntawd muab ob npaug rau qhov tshwm sim kom tau txais p - tus nqi.

Pom zoo: