Qib Tseem Ceeb (Alpha) yog dab tsi? Cov theem tseem ceeb, kuj txhais tau tias yog alpha lossis α, yog qhov tshwm sim ntawm kev tsis lees paub qhov kev xav tsis zoo thaum nws muaj tseeb. Piv txwv li, qhov tseem ceeb ntawm 0.05 qhia txog 5% kev pheej hmoo ntawm kev txiav txim siab tias qhov sib txawv tshwm sim thaum tsis muaj qhov sib txawv tiag tiag.
Yuav ua li cas yog ib theem tseem ceeb siv rau?
theem tseem ceeb, tseem hu ua alpha lossis α, yog ntsuas ntawm lub zog ntawm cov pov thawj uas yuav tsum muaj nyob hauv koj tus qauv ua ntej koj yuav tsis lees paub qhov kev xav tsis zoo thiab xaus lus tias cov txiaj ntsig yog statistically tseem ceeb. Tus kws tshawb fawb txiav txim siab qhov tseem ceeb ua ntej ua qhov kev sim.
Kuv yuav xaiv qhov tseem ceeb theem twg?
Nws yog txhua yam hais txog kev lag luam tawm ntawm kev nkag siab thiab qhov tsis tseeb! Hauv kev xaus, qhov theem tseem ceeb ntawm 0.05 yog qhov ntau tshaj. Txawm li cas los xij, nws yog tus kws tshuaj ntsuam lub luag haujlwm los txiav txim siab ntau npaum li cas cov pov thawj xav tau los txiav txim siab tias muaj txiaj ntsig tshwm sim.
Koj puas siv 0.05 qib ntawm qhov tseem ceeb?
theem tseem ceeb txhais tau tias muaj pov thawj ntau npaum li cas peb xav kom tsis lees txais H0 pom zoo HA. Nws ua haujlwm raws li kev txiav tawm. Qhov kev txiav tawm uas feem ntau siv yog 0.05.
qib tseem ceeb hauv kev tshawb fawb yog dab tsi?
The theem tseem ceeb (tseem hu ua Hom I yuam kev tus nqi lossis level ntawm kev txheeb cais tseem ceeb ) hais txog qhovQhov tshwm sim ntawm kev tsis lees paub qhov kev xav tsis tseeb uas yog qhov tseeb. … Qhov theem tseem ceeb yog qee zaum hu ua qhov tshwm sim ntawm qhov tau txais qhov tshwm sim los ntawm lub sijhawm ib leeg.
