Muestreo
Claudia Guerrero
15 de agosto de 2016
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Población y muestras
- 1.- Población, colonia, municipio:Universitarios
- 2.- Muestra fac. Negocios: 192 alumnos ## Muestreo
1.-Primero, en lugar de tomar una muestra aleatoria, muestrear a los estudiantes que estudian negocios. (192). Hacer el análisis descriptivo respectivo. (Muestreo enmarcado) cluster de Negocios.
\newpagePoblación.
Consideraciones
| X | Facultad | Mano | Sexo | Razonamiento.verbal | Edad |
|---|---|---|---|---|---|
| 1 | Social | izquierda | masculino | 470 | 18.83 |
| 2 | Social | derecha | femenino | 650 | 18.67 |
| 3 | Social | derecha | masculino | 580 | 20.08 |
| 4 | Social | derecha | femenino | 660 | 18.5 |
| 5 | Social | derecha | femenino | 790 | 24.25 |
## 'data.frame': 1129 obs. of 6 variables:
## $ X : int 1 2 3 4 5 6 7 8 9 10 ...
## $ Facultad : chr " Social" " Social" " Social" " Social" ...
## $ Mano : chr "izquierda" "derecha" "derecha" "derecha" ...
## $ Sexo : chr "masculino" "femenino" "masculino" "femenino" ...
## $ Razonamiento.verbal: num 470 650 580 660 790 640 660 560 560 540 ...
## $ Edad : num 18.8 18.7 20.1 18.5 24.2 ...## X Facultad Mano Sexo
## Min. : 1 Length:1129 Length:1129 Length:1129
## 1st Qu.: 283 Class :character Class :character Class :character
## Median : 565 Mode :character Mode :character Mode :character
## Mean : 565
## 3rd Qu.: 847
## Max. :1129
##
## Razonamiento.verbal Edad
## Min. :300.0 Min. :17.67
## 1st Qu.:540.0 1st Qu.:19.08
## Median :590.0 Median :19.67
## Mean :588.8 Mean :20.37
## 3rd Qu.:640.0 3rd Qu.:20.67
## Max. :800.0 Max. :74.17
## NA's :131 NA's :6## [1] "X" "Facultad" "Mano"
## [4] "Sexo" "Razonamiento.verbal" "Edad"Variables Categóricas
## [1] "table"## x
## derecha izquierda
## 979 150## x
## derecha izquierda
## 0.8671391 0.1328609## table [1:2(1d)] 0.867 0.133
## - attr(*, "dimnames")=List of 1
## ..$ x: chr [1:2] "derecha" "izquierda"
Variables discretas
## x
## 300 340 350 390 400 410 420 425 430 440 450 460 470 480 490 495 500 510
## 1 2 1 1 8 3 5 1 4 5 10 7 6 15 15 1 46 21
## 520 530 535 540 550 555 560 570 580 590 595 600 610 620 625 630 635 640
## 41 32 2 52 61 2 50 25 57 46 1 100 30 46 2 30 1 37
## 643 650 660 670 675 680 690 700 710 720 730 740 750 760 770 780 790 800
## 1 45 26 31 2 26 16 23 8 16 7 5 8 5 1 2 4 5## [1] "table"## x
## 300 340 350 390 400 410
## 0.001002004 0.002004008 0.001002004 0.001002004 0.008016032 0.003006012
## 420 425 430 440 450 460
## 0.005010020 0.001002004 0.004008016 0.005010020 0.010020040 0.007014028
## 470 480 490 495 500 510
## 0.006012024 0.015030060 0.015030060 0.001002004 0.046092184 0.021042084
## 520 530 535 540 550 555
## 0.041082164 0.032064128 0.002004008 0.052104208 0.061122244 0.002004008
## 560 570 580 590 595 600
## 0.050100200 0.025050100 0.057114228 0.046092184 0.001002004 0.100200401
## 610 620 625 630 635 640
## 0.030060120 0.046092184 0.002004008 0.030060120 0.001002004 0.037074148
## 643 650 660 670 675 680
## 0.001002004 0.045090180 0.026052104 0.031062124 0.002004008 0.026052104
## 690 700 710 720 730 740
## 0.016032064 0.023046092 0.008016032 0.016032064 0.007014028 0.005010020
## 750 760 770 780 790 800
## 0.008016032 0.005010020 0.001002004 0.002004008 0.004008016 0.005010020## [1] 300 540 590 640 800## [1] 588.7806## [1] 590## 35% 50% 90%
## 560 590 683## [1] 76.08147## [1] 5788.39## [1] 300 800## [1] 100## [1] 300## [1] 346## [1] 300## [1] 470 650 560 560 540
##
## The decimal point is 2 digit(s) to the right of the |
##
## 3 | 044
## 3 | 59
## 4 | 00000000111222223333344444
## 4 | 55555555556666666777777888888888888888999999999999999
## 5 | 00000000000000000000000000000000000000000000000111111111111111111111+115
## 5 | 55555555555555555555555555555555555555555555555555555555555556666666+161
## 6 | 00000000000000000000000000000000000000000000000000000000000000000000+168
## 6 | 55555555555555555555555555555555555555555555566666666666666666666666+66
## 7 | 00000000000000000000000111111112222222222222222333333344444
## 7 | 55555555666667889999
## 8 | 00000## x
## 300 340 350 390 400
## 0.0008857396 0.0017714792 0.0008857396 0.0008857396 0.0070859167
## 410 420 425 430 440
## 0.0026572188 0.0044286980 0.0008857396 0.0035429584 0.0044286980
## 450 460 470 480 490
## 0.0088573959 0.0062001771 0.0053144376 0.0132860939 0.0132860939
## 495 500 510 520 530
## 0.0008857396 0.0407440213 0.0186005314 0.0363153233 0.0283436670
## 535 540 550 555 560
## 0.0017714792 0.0460584588 0.0540301151 0.0017714792 0.0442869796
## 570 580 590 595 600
## 0.0221434898 0.0504871568 0.0407440213 0.0008857396 0.0885739593
## 610 620 625 630 635
## 0.0265721878 0.0407440213 0.0017714792 0.0265721878 0.0008857396
## 640 643 650 660 670
## 0.0327723649 0.0008857396 0.0398582817 0.0230292294 0.0274579274
## 675 680 690 700 710
## 0.0017714792 0.0230292294 0.0141718335 0.0203720106 0.0070859167
## 720 730 740 750 760
## 0.0141718335 0.0062001771 0.0044286980 0.0070859167 0.0044286980
## 770 780 790 800
## 0.0008857396 0.0017714792 0.0035429584 0.0044286980## table [1:54(1d)] 0.000886 0.001771 0.000886 0.000886 0.007086 ...
## - attr(*, "dimnames")=List of 1
## ..$ x: chr [1:54] "300" "340" "350" "390" ...## Min. 1st Qu. Median Mean 3rd Qu. Max. NA's
## 300.0 540.0 590.0 588.8 640.0 800.0 131
## [1] 290 310 330 350 370 390 410 430 450 470 490 510 530 550 570 590 610
## [18] 630 650 670 690 710 730 750 770 790 810 830 850
## integer(0)Variables continuas
## [1] 17.67 19.08 19.67 20.67 74.17## [1] 20.3749## [1] 19.67## 35% 50% 90%
## 19.33 19.67 22.17## [1] 3.188835## [1] 10.16867## [1] 17.67 74.17## [1] 1.59## [1] 17.67## [1] 674## [1] 17.67## [1] 18.83 18.67 19.25 18.50 19.08
##
## The decimal point is 1 digit(s) to the right of the |
##
## 1 | 88888888888888888888888888888888888888888888888888888888888888888999+379
## 2 | 00000000000000000000000000000000000000000000000000000000000000000000+536
## 2 | 555555555555556666666788899
## 3 | 000111223444
## 3 | 57
## 4 | 04
## 4 | 556
## 5 | 1
## 5 |
## 6 |
## 6 |
## 7 | 4## [1] 19.67