Question: uelle est la valeur de l'cart-rduit Z? Le seuil de signification est de 5%. CAS 1 : Test de la diffrence significative minimale (z-Test) /

uelle est la valeur de l'cart-rduit Z? Le seuil de signification est de 5%. CAS 1 : Test de la diffrence significative minimale (z-Test) / Z-test: Two Sample for Means Test de la diffrence significative minimale (z-Test) Rsultats test visio-moteur - Usine 1 Rsultat test visio-moteur - Usine 2 Moyenne 67,802 64,784 Variances (connues) 81 64 Observations 68 62 Diffrence hypothtique des moyennes 0 z P(Z<=z) unilatral 0,0215 Valeur critique de z (unilatral) 1,645 P(Z<=z) bilatral 0,0403 Valeur critique de z (bilatral) 1,960

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