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Une Entreprise uvrant dans le domaine du multimdia donne l'opportunit ses programmeurs-analystes d'valuer la performance des cadres suprieurs. Voici les rsultats obtenus (sur une chelle

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Une Entreprise uvrant dans le domaine du multimdia donne l'opportunit ses programmeurs-analystes d'valuer la performance des cadres suprieurs.

Voici les rsultats obtenus (sur une chelle de 10 50) ou 50 reprsentent une excellente performance. 10 programmeurs furent slectionns au hasard pour valuer deux cadres. Un rapport Excel est galement fourni (seuil de signification = 5%).

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Test d'egalite des esperances pour observations pairees Cadre A Cadre B Moyenne 24.2 29.3 Variance 57.7333 56.6778 Observations 10 10 Coefficient de correlation de Pearson 0.9661 Difference hypotheticque des moyennes Degre de liberte Statistique t P(T

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