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1.Utilizando la siguiente informacin Ho: 1 = 2 Ha: 1 > 2 Muestra1 Muestra2 N 1 = 20 N 2 = 32 1 = 2

1.Utilizando la siguiente informacin

Ho: 1= 2

Ha: 1> 2

Muestra1 Muestra2

N1 = 20 N2 = 32

1= 2 2= 1

Xbarra1=4 Xbarra2=8

  1. Pruebe la siguiente hiptesis antes presentada

Utilice = 0.10

  1. Estime un intervalo de confianza de un 90% para el valor verdadero de la diferencias en promedio.

2. Utilizando la siguiente informacin Utilice = 0.01

Ho: 1= 2

Ha: 1 2

Muestra1 Muestra2

N1= 36 N2 = 36

S1= 5 S2 = 8

Xbarra1=20 Xbarra2=16

  1. Pruebe la siguiente hiptesis antes presentada
  2. Determine un intervalo de confianzade 95% para el valor verdadero de la diferencias en promedios entre la muestra #1 y #2. (m1 -m2 )?

3. Realice las siguientes postulados utilizando, la prueba de hiptesis apropiada:

Use = 0.05 (nivel de significacin)

PLANTA#1 PLANTA#2
X= 6 X=8
N1 =36 N=60

  1. Existe evidencia estadstica que la proporcin de defectuosos de la planta#1 mayor que dela planta#2

Ho: p1 = p2

Ha: p1 > p2

  1. Calcule el valor-p para esta prueba. Cul ser su decisin?

4. Pruebe la siguiente hiptesis : Use = 0.05 (nivel de significacin)

PLANTA - 1 PLANTA - 2
X1 =2 X2 =3
N1 =36 N2 =36

Ho: p1 = p2

Ha: p1 p2

a. Determine intervalo de confianza de 95% para la diferencia verdadera entre proporciones.

b.. Calcule el valor-p para esta prueba. Cul ser su decisin?

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