Video: Tus nqi Cpk siab tshaj yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov sib ntxiv ntawm "k" hauv Cpk quantifies tus nqi ntawm qhov kev faib khoom nruab nrab, hauv lwm lo lus nws suav rau kev hloov pauv. Cov txheej txheem zoo kawg nkaus uas qhov nruab nrab yog tib yam li qhov nruab nrab yuav muaj "k" tus nqi ntawm 0. Yam tsawg kawg nkaus tus nqi ntawm "k" yog 0 siab kawg yog 1.0.
Kuj nug, dab tsi yog tus nqi Cpk zoo?
Feem ntau peb xav tau Cpk ua tsawg kawg yog 1.33 [4 sigma] lossis siab dua kom txaus siab rau cov neeg siv khoom feem ntau. Cpk tuaj yeem muaj sab saud thiab qis tus nqi qhia. Yog lub sab sauv tus nqi yog 2 thiab qhov qis yog 1, peb hais tias nws tau hloov mus rau sab laug. Qhov no qhia peb tsis muaj dab tsi txog seb cov txheej txheem ruaj khov lossis tsis yog.
Cpk ntawm 1.67 txhais li cas? Lub peev xwm Index, Cpk . Cov txiaj ntsig ntawm Kev Tshawb Fawb Txog Kev Muaj Peev Xwm Txheej Txheem yog ib qho kev ntsuas ib zaug, uas qhia txog lub peev xwm ntawm cov txheej txheem los muab cov khoom tso tawm tsis tu ncua uas yog nyob rau hauv qhov xav tau tshwj xeeb. CPK <1.00 (Tsis zoo, tsis muaj peev xwm) 1.00< CPK < 1.67 (Fair) CPK > 1.67 (Zoo heev, Muaj peev xwm)
Kuj nug, Cpk ntawm 1.0 txhais li cas?
Txhais : Cpk = Cpk = Txheej Txheem Peev Xwm Index. Kev hloov ntawm Cp rau cov txiaj ntsig ntawm kev faib khoom tsis yog qhov chaw. A Cpk uas tsawg dua 1.33 xav tau qee qhov kev ua kom nws siab dua, thiab a Cpk tsawg dua 1.0 txhais tias cov txheej txheem tsis muaj peev xwm ua tau raws li nws cov cai.
Vim li cas CP yeej ib txwm loj dua CPK?
Re: Cp thiab Cpk Raws li koj paub, lub ntau dua tus nqi ntawm Cpk , qhov zoo dua yog lub peev xwm ntawm cov txheej txheem los tsim cov khoom hauv Specification. Thaum tsuas yog txheej txheem variation cuam tshuam rau Cp tus nqi, ob qho tib si Variation thiab central tendency influences Cpk . Qhov no yog vim cp yuav ib txwm ua ntau dua los yog sib npaug rau Cpk.
Pom zoo:
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