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Jun 20th, 2018
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  1. # Exemplos de Curvas Características Operacionais
  2.  
  3. # CCO para distribuição normal padrão (valor médio amostral)
  4.  
  5. n <- 4
  6. gama <- seq(0,5,by=0.02)
  7. beta <- pnorm(3-gama*sqrt(n))-pnorm(-3-gama*sqrt(n))
  8. plot(gama,beta,type="l")
  9. n <- 8
  10. beta <- pnorm(3-gama*sqrt(n))-pnorm(-3-gama*sqrt(n))
  11. points(gama,beta,type="l",lty=3)
  12. abline(v=1.5,lty=2,col="red")
  13. legend("topright",legend=c("n=4","n=8"),lty=c(1,3))
  14.  
  15. # CCO para distribuição binomial (proporções)
  16.  
  17. n <- 100
  18. c <- 5
  19. p <- seq(0.00,0.10,by=0.001)
  20. Pa <- pbinom(c,n,p)
  21. plot(p,Pa,type="l")
  22. n <- 200
  23. Pa <- pbinom(c,n,p)
  24. points(p,Pa,type="l",lty=3)
  25. abline(v=0.05,lty=2,col="red")
  26. legend("topright",legend=c("n=100","n=200"),lty=c(1,3))
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