13 tema
-
Upload
juan-soto -
Category
Engineering
-
view
23 -
download
2
Transcript of 13 tema
![Page 1: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/1.jpg)
Correlación y regresión Lineal.
![Page 2: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/2.jpg)
Correlación
![Page 3: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/3.jpg)
ESTADÍSTICA II
![Page 4: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/4.jpg)
![Page 5: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/5.jpg)
Coeficiente de correlación lineal
![Page 6: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/6.jpg)
![Page 7: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/7.jpg)
![Page 8: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/8.jpg)
![Page 9: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/9.jpg)
Pruebas de una cola
![Page 10: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/10.jpg)
Pruebas cuando ρ≠0
:Ho k
1
1
1
:
:
:
H k
H k
H k
Estadístico de prueba:
1 13
2 1 1
r knZ Ln
r k
Valor crítico: Tabla A-2
Intervalos de confianza para ρ
![Page 11: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/11.jpg)
REGRESIÓN
![Page 12: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/12.jpg)
![Page 13: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/13.jpg)
![Page 14: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/14.jpg)
Prueba de Hipótesis para la regresión
1:Ho k
1 1
1 1
1 1
:
:
:
H k
H k
H k
Valores críticos: Tabla A-3 con n-2 grados de libertad
Estadístico de prueba: 1
2
22
e
b kt
S
x nx
![Page 15: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/15.jpg)
Intervalo de confianza para β1 y β0
Con tα/2 con n-2 grados de libertad
![Page 16: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/16.jpg)
![Page 17: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/17.jpg)
![Page 18: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/18.jpg)
![Page 19: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/19.jpg)
![Page 20: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/20.jpg)
Si una gráfica residual no revela ningún patrón, la ecuación de
regresión es una buena representación de la asociación entre las dos
variables.
Si una gráfica residual revela algún patrón sistemático, la ecuación de
regresión no es una buena representación de la asociación entre las
dos variables.
![Page 21: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/21.jpg)
![Page 22: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/22.jpg)
![Page 23: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/23.jpg)
![Page 24: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/24.jpg)
Variación
![Page 25: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/25.jpg)
![Page 26: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/26.jpg)
![Page 27: 13 tema](https://reader033.fdocuments.net/reader033/viewer/2022042723/5876b6721a28abad1a8b5d3f/html5/thumbnails/27.jpg)