Formulas Pmd

  • July 2020
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FORMULARIO PARA LOS PLANES DE MUESTREO DE ACEPTACIÓN DOBLES Aceptación en la 1° Muestra Rechazo en la 1° Muestra

PM D

Pasar a decidir en la 2° Muestra

P(Ac en n1) = P(Re en n1) =

c1



d1 =0

(n1p)d1 d1!

n1



d1 =R1

R1 − 1 P(Pasar a n2) =



d1 = c1 + 1

Probabilidad de Aceptarse en “n2”

e −n1p

(n1p)d1 d1!



e −n1p

P(Ac con n2) = P(Pasar a n2)*P(Ac en n2) =

R 1 −1  d  (n1p) 1 ∑  d! 1 d1 = c 1 +1 

(n1p)d1 − n1p e d1!

c 2 − d1

e −n1p * ∑

d 2 =0

d (n 2 p ) 2 d2 !



e −n 2p  

Probabilidad de Rechazarse en “n2”

 P(Re con n2) = P(Pasar a n2)*P(Re en n2) = R1 −1  d (n p ) 1 ∑  1d ! 1 d1 =c 1 +1

e

−n1p

n2

*



d2 =R 2 − d1

d (n 2 p) 2 d2 !

 −n 2 p  e  

PROBABILIDAD DE ACEPTACIÓN TOTAL c1

P(Ac total) = d∑=0 1

ASN

PMD

=

(n1p )d1 d1!

e −n1p

+

R 1 −1  d  (n1p) 1 ∑  d! 1 d1 = c 1 +1 

c 2 − d1

e −n1p * ∑

d 2 =0

d (n 2 p ) 2 d2 !



e −n 2p  

n1 + n2*P(pasar a n2) = n1 + n2*( 1 – P(Ac en n1) – P(Re en n1) )

ATI

PMD

= ASNPMD + ( 1 – P(Ac total)*(N – ASNPMD)

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