Ib khub t-test yog tsim los sib piv cov txhais tau tias ntawm tib pab pawg lossis yam khoom hauv ob qhov xwm txheej sib cais. Ib qho kev sib tw t-kev sib piv tsis sib piv cov txhais tau tias ntawm ob pawg neeg ywj siab lossis tsis muaj feem cuam tshuam. … Nyob rau hauv ib tug khub t-test, qhov sib txawv tsis xav tias yuav sib npaug.
Vim li cas koj thiaj siv qhov sib tw t-test?
Ib khub t-test yog siv thaum peb xav txog qhov sib txawv ntawm ob qhov sib txawv rau tib yam kev kawmFeem ntau ob qhov sib txawv yog sib cais los ntawm lub sijhawm. Piv txwv li, hauv Dixon thiab Massey cov ntaub ntawv teev peb muaj cov roj cholesterol hauv xyoo 1952 thiab qib roj cholesterol hauv xyoo 1962 rau txhua qhov kev kawm.
Qhov txawv ntawm t-test thiab khub t-test yog dab tsi?
Ob tus qauv t-test yog siv thaum cov ntaub ntawv ntawm ob tus qauv yog cov ntaub ntawv ywj pheej, thaum qhov kev sib tw t-test yog siv thaum cov ntaub ntawv yog nyob rau hauv daim ntawv sib tw ua khub.
Vim li cas tus khub t-test zoo dua li kev ywj pheej t-test?
Ob daim tshev saib seb qhov sib txawv ntawm ob txhais tau li cas yog qhov tseem ceeb. Paired-samples t tests sib piv cov qhab nia ntawm ob qhov sib txawv tab sis rau tib pab pawg ntawm cov xwm txheej; ywj siab-cov qauv t kev xeem sib piv cov qhab nia ntawm tib qhov sib txawv tab sis rau ob pawg sib txawv.
Vim li cas cov ntaub ntawv ua ke zoo dua?
A Paired Design Txo Kev sim ua yuam kev Qhov no tuaj yeem ua rau muaj txiaj ntsig zoo dua uas yuav tsum muaj peev txheej tsawg los kuaj pom qhov sib txawv tseem ceeb, yog tias muaj.
