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ejercicio Analisis de varianza para rendimiento de extracción Diseno de Metodos Analiticos
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ejercicio Analisis de varianza para rendimiento de extracción Diseno de Metodos Analiticos
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En una lanta piloto, se pretende estudiar la obtenciòn de un nuevo producto mediante un proceso quìmicoEn estudios previos se identifica que el rendimiento probablemente depende de las concentraciones de
materia prima (%), el cataqlizador utilizado y la temperatura (ºC)
Concentraciòn
4 6 8
Temperatura 300 320 300 320 300 320
72.2 65 74.4 69.2 75 70.7
Ag 74.4 71.6 66.3 71.8 78.9 80.6
64.3 61.9 66.5 64.6 64.3 73.4
62.5 75.9 70.8 79.2 76.3 83.3
Ag+Zn 65.8 72.9 63.9 80.1 79.1 88
Catalizador
71.2 77.8 76.6 75.3 89 84.7
69 73.8 69 84.5 72.8 94.1
Zn 70.3 59.2 68.2 93.7 73.7 87.3
68.8 80.8 78.7 80.1 80.7 89
Hipótesis
A:Concentración
B: temp
C: Cat
Ho: Efecto A=0 Ha: Efecto A≠0
Ho: Efecto B=0 Ha: Efecto B≠0
Ho: Efecto C=0 Ha: Efecto C≠0
Ho: Efecto AB=0 Ha: Efecto AB≠0
Ho: Efecto AC=0 Ha: Efecto AC≠0
Ho: Efecto BC=0 Ha: Efecto BC≠0
Ho: Efecto ABC=0 Ha: Efecto ABC≠0
Selecciona y reporta el mejor ANOVA, ten en cuenta: No se excluye ninguno
criterio de exclusiòn
variabilidad del experimento
, A p<0.05
Se rechaza Ho, ya que Fcal>Fcri, por lo que el efecto A≠0 (p<0.05) El caoncentración tiene
B p<0.05
Se rechaza Ho, ya que Fcal>Fcri, por lo que el efecto B≠0 (p<0.05) El tiempo tiene un efect
C p<0.05
Se rechaza Ho, ya que Fcal>Fcri, por lo que el efecto C≠0 (p<0.05) El catalizador tiene un e
AB p>0.05
Se acepta Ho, ya que Fcal>Fcri, por lo que el efecto AB=0 (p>0.05) Las interacciones no tien
AC p>0.05
Se acepta Ho, ya que Fcal>Fcri, por lo que el efecto AC=0 (p>0.05) Las interacciones no tien
BC p<0.05
Se rechaza Ho, ya que Fcal>Fcri, por lo que el efecto BC≠0 (p<0.05) Las interacciones tienen
ABC p>0.05
Se acepta Ho, ya que Fcal>Fcri, por lo que el efecto ABC=0 (p>0.05) Las interacciones no tien
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