I need help finding the value for a POISSON formula
I have the table below:
With the POISSON formula of excel = POISSON (10; 11.97; TRUE) I get 35,07%
=POISSON( Numero de Peças ; Peças Entregues dentro do prazo 7 dias;TRUE)
The result with the number of pieces (10) gives me an availability of: 35,07%
And I have a AvailabilityVariable variable that I report the availability I want to achieve.
Ex: If I want 95% availability, I need 18 pieces.
=POISSON(18;624;TRUE) = 96,34%
I need a formula that gives me the quantity of pieces for POISSON to get me the availability I want.
If you need 35% = 10 pieces.
If you need 95% = 18 pieces.
- Parts delivered within 7 days = 624 / (365/7)