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Votre reponse : 2.- Quelle est la meilleure estimation ponctuelle possible de la moyenne de la population? (2 pts) Votre reponse : 3.- Faut-il recourir

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Votre reponse : 2.- Quelle est la meilleure estimation ponctuelle possible de la moyenne de la population? (2 pts) Votre reponse : 3.- Faut-il recourir a z de la loi normale centree reduite ou a t de la loi de Student pour etablir un intervalle de la population

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