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Intervalle de pari et risque


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Hello,

 

alors à retenir : si alpha et/ou n diminue, l'intervalle s'élargit (= l'amplitude augmente). Il faut raisonner avec les valeurs de la loi Normale :

  • si alpha = 5%, u(alpha) = 1,96
  • si alpha = 10%, u(alpha) = 1,6
  • si alpha = 32%, u(alpha) = 1

Donc tu vois que si alpha diminue, on va élargir l'intervalle ?

 

dac ?

 

 

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il y a 2 minutes, Chat_du_Cheshire a dit :

Hello,

 

alors à retenir : si alpha et/ou n diminue, l'intervalle s'élargit (= l'amplitude augmente). Il faut raisonner avec les valeurs de la loi Normale :

  • si alpha = 5%, u(alpha) = 1,96
  • si alpha = 10%, u(alpha) = 1,6
  • si alpha = 32%, u(alpha) = 1

Donc tu vois que si alpha diminue, on va élargir l'intervalle ?

 

dac ?

 

 

 

Super merci beaucoup !!!

Bonne soirée ? 

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