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Chi-Cuadrado: Verdadero o Falso

Yes or No

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Reto rápido sobre el test χ².

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Chi-Cuadrado: Verdadero o Falso
 

Chi-Cuadrado: Verdadero o FalsoOnline version

Reto rápido sobre el test χ².

by Hey_latiaNardiux
1

El test de chi-cuadrado se usa para comparar frecuencias observadas con las esperadas en tablas de contingencia.

2

En un test de bondad de ajuste, se comparan frecuencias observadas con las frecuencias esperadas.

3

El test de chi-cuadrado se usa para comparar medias entre dos grupos.

4

Si p = 0.01, se acepta la hipótesis nula.

5

La distribución χ² depende solo del número de categorías y no del tamaño de la muestra.

6

El estadístico χ² se denota con la letra χ² y se calcula sumando (O−E)²/E.

7

El valor de χ² puede ser negativo.

8

En pruebas de independencia, los grados de libertad son (r−1)·(c−1).

9

Para el test de independencia, los grados de libertad se calculan como (filas-1) + (columnas-1).

10

El valor p se obtiene comparando χ² con la distribución χ² con los grados de libertad adecuados.

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