txhawm rau nrhiav qhov tseem ceeb, rho tus lej qhia los ntawm ib qho. Piv txwv li, tus nqi ntawm ". 01" txhais tau tias muaj 99% (1-. 01=.
Koj pom qhov theem ntawm qhov tseem ceeb hauv kev ntsuas kev xav li cas?
theem tseem ceeb, kuj txhais tau tias yog alpha lossis α, yog qhov tshwm sim ntawm kev tsis lees paub qhov kev xav tsis tseeb 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.
95% ntawm qhov tseem ceeb yog dab tsi?
Koj qhov kev txheeb cais qhov tseem ceeb qhia txog koj qhov kev pheej hmoo txaus ntshai thiab qib kev ntseeg siab. Piv txwv li, yog tias koj khiav qhov kev sim ntsuas A / B nrog qhov tseem ceeb ntawm 95%, qhov no txhais tau hais tias yog tias koj txiav txim siab tus yeej, koj tuaj yeem 95% ntseeg tau tias cov txiaj ntsig tau pom muaj tseeb thiab tsis yog qhov yuam kev. tshwm sim los ntawm randomness
Koj txhais li cas 95 kev ntseeg siab ib ntus?
Kev txhais lus tseeb ntawm 95% kev ntseeg siab yog tias " peb 95% ntseeg tias cov pejxeem nyob nruab nrab ntawm X thiab X. "
Kuv yuav ua li cas thiaj paub yog tias muaj qee yam tseem ceeb?
Qib uas ib tus tuaj yeem lees txais txawm tias qhov xwm txheej tseem ceeb yog qhov tseem ceeb yog lub npe hu ua qib tseem ceeb. Cov kws tshawb fawb siv cov ntaub ntawv ntsuas p-value los txiav txim qhov tseem ceeb ntawm cov ntaub ntawv: yog tias p-tus nqi poob qis dua qhov tseem ceeb, ces qhov tshwm sim yog qhov tseem ceeb.
