Muestreo

Páginas: 13 (3249 palabras) Publicado: 2 de enero de 2013
Muestreo
14 | 11 | 15 | 13 |
16 | 12 | 15 | 15 |
15 | 16 | 13 | 13 |
17 | 16 | 17 | 18 |
15 | 16 | 16 | 19 |
13 | 11 | 18 | 10 |
17 | 15 | 12 | 14 |
16 | 14 | 14 | 14 |
17 | 10 | 15 | 12 |
17 | 16 | 14 | 18 |

Promedio = 50040=14.7
Determina el promedio del examen diagnóstico del grupo 112 a partir del siguiente muestreo, con las características siguientes:
I. Muestreotamaño 7, 3 a columna, 13 fila – derecha
II. Muestreo tamaño 13, 5 a columna, 42 fila – abajo
III. Muestreo tamaño 25, 10 a columna, 2 fila – izquierda
IV. Muestreo tamaño 28, 1 a columna, 20 fila – arriba

I.
N1 | = | (0.88) | 40 | = | 35.2 | 19 |
. | = | (0.21) | 40 | = | 8.4 | 15 |
. | = | (0.85) | 40 | = | 34 | 18 |
. | = | (0.81) | 40 | = | 32.4 | 15 |
. | = | (0.81) |40 | = | 32.4 | 15 |
. | = | (0.52) | 40 | = | 20.8 | 16 |
N7 | = | (0.59) | 40 | = | 23.6 | 13 |

x=19+15+18+15+15+16+13=15.85

II.
N1 | = | (0.70) | 40 | = | 28 | 14 |
. | = | (0.50) | 40 | = | 20 | 16 |
. | = | (0.42) | 40 | = | 16.8 | 11 |
. | = | (0.45) | 40 | = | 18 | 14 |
. | = | (0.46) | 40 | = | 18.4 | 14 |
. | = | (0.53) | 40 | = | 21.2 | 15 |
. | = | (0.64) | 40 |= | 25.6 | 16 |
. | = | (0.78) | 40 | = | 31.2 | 13 |
. | = | (0.88) | 40 | = | 35.2 | 19 |
. | = | (0.76) | 40 | = | 30.4 | 14 |
. | = | (0.46) | 40 | = | 18.4 | 14 |
. | = | (0.55) | 40 | = | 22 | 15 |
N13 | = | (0.48) | 40 | = | 19.2 | 10 |

x=14+16+11+14+14+15+16+13+19+14+14+15+10=14.23
III.
N1 | = | | 40 | = | 9.2 | 17 |
. | = | | 40 | = | 19.2 | 10 |
. | = | | 40 | =| 19.2 | 10 |
. | = | | 40 | = | 18.8 | 14 |
. | = | | 40 | = | 21.2 | 15 |
. | = | | 40 | = | 18.8 | 14 |
. | = | | 40 | = | 18.8 | 14 |
. | = | | 40 | = | 20 | 16 |
. | = | | 40 | = | 20 | 16 |
. | = | | 40 | = | 19.2 | 10 |
. | = | | 40 | = | 34.8 | 18 |
. | = | | 40 | = | 20.4 | 16 |
. | = | | 40 | = | 19.2 | 10 |
. | = | | 40 | = | 20 | 16 |
. | = | | 40 |= | 18.4 | 14 |
. | = | | 40 | = | 16.8 | 11 |
. | = | | 40 | = | 19.2 | 10 |
. | = | | 40 | = | 18.8 | 14 |
. | = | | 40 | = | 20.4 | 16 |
. | = | | 40 | = | 16.8 | 11 |
. | = | | 40 | = | 18.4 | 14 |
. | = | | 40 | = | 18.8 | 14 |
. | = | | 40 | = | 20.8 | 16 |
. | = | | 40 | = | 18.8 | 14 |
N25 | = | | 40 | = | 18.8 | 14 |x=17+10+10+14+15+14+14+16+16+10+18+16+10+16+14+11+10+14+16+11+14+14+16+14+14=13.76

N1 | = | (0.55) | 40 | = | 22 | 15 |
. | = | (0.33) | 40 | = | 13.2 | 16 |
. | = | (0.74) | 40 | = | 29.6 | 15 |
. | = | (0.55) | 40 | = | 22 | 15 |
. | = | (0.35) | 40 | = | 14 | 16 |
. | = | (0.35) | 40 | = | 14 | 16 |
. | = | (0.46) | 40 | = | 18.4 | 14 |
. | = | (0.32) | 40 | = | 12.8 | 12 |
. | = | (0.55) | 40 | = | 22 | 15 |. | = | (0.57) | 40 | = | 22.8 | 15 |
. | = | (0.73) | 40 | = | 29.2 | 15 |
. | = | (0.00) | 40 | = | 1 | 14 |
. | = | (0.07) | 40 | = | 2.8 | 16 |
. | = | (0.45) | 40 | = | 18 | 14 |
. | = | (0.64) | 40 | = | 25.6 | 16 |
. | = | (0.10) | 40 | = | 4 | 17 |
. | = | (0.20) | 40 | = | 8 | 15 |
. | = | (0.56) | 40 | = | 22.4 | 15 |
. | = | (0.48) | 40 | = | 19.2 | 10 |
. | = |(0.42) | 40 | = | 16.8 | 11 |
. | = | (0.46) | 40 | = | 18.4 | 14 |
. | = | (0.47) | 40 | = | 18.8 | 14 |
. | = | (0.03) | 40 | = | 1.2 | 14 |
. | = | (0.57) | 40 | = | 22.8 | 15 |
. | = | (0.53) | 40 | = | 21.2 | 15 |
. | = | (0.32) | 40 | = | 12.8 | 12 |
. | = | (0.90) | 40 | = | 36 | 10 |
N28 | = | (0.30) | 40 | = | 12 | 12 |x=15+16+15+15+16+16+14+12+15+15+15+14+16+14+16+17+15+15+10+11+14+14+14+15+15+12+10+12=14.21

1) Orden por efectivos
10 | 2 |
11 | 2 |
12 | 3 |
13 | 4 |
14 | 6 |
15 | 8 |
16 | 6 |
17 | 5 |
18 | 3 |
19 | 1 |

1. Rango = 19-10 = 9
2. Numero de intervalos = 1+3.3log(9) = 4.14 ≈5
3. Amplitud del intervalo = 95=1.8 ≈2
# | Intervalos | Frecuencia |
1 | 10-11 | 4 |
2 | 12-13 | 7 |
3 | 14-15 | 14 |
4 | 16-17...
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