Question
L'entreprise Biopak fabrique des panneaux en plexiglass. 2 operateurs sont affects l'operation qui consiste appliquer une couche mince d'une matiere plastique sur ces panneaux. On
L'entreprise Biopak fabrique des panneaux en plexiglass. 2 operateurs sont affects l'operation qui consiste appliquer une couche mince d'une matiere plastique sur ces panneaux. On veut comparer le nombre de panneaux non conformes produit par chaque operateur. Un echantillon aleatoire de 100 panneaux provenant de l'unite de fabrication de l'operateur A comporte 9 panneaux non conformes alors qu un echantillon aleatoire de 200 panneaux provenant de l'unite de fabrication de l operateur de B comporte 9 panneaux non conformes. Peut on affirmer au seuil de significance de 0.01que A presente une proportion de panneaux non conformes egale B ?Effectuez le test statistique pour repondre cette question ?
The company Biopak manufactures plexiglass panels. 2 operators are assigned to the operation which consists in applying a thin layer of a plastic material on these panels. We want to compare the number of non conforming panels produced by each operator. A random sample of 100 panels from operator A's production unit has 9 non-conforming panels while a random sample of 200 panels from operator B's production unit has 9 non-conforming panels. Can we affirm at the significance level of 0.01 that A has a proportion of nonconforming panels equal to B? Perform the statistical test to answer this question?
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