The foundation is the following: if the chi - square value is greater than or equal to 0.05, the null hypothesis is accepted and the research hypothesis is discarded. This means that there is not any relation among the variables analyzed. If the value is less than 0.05, the null hypothesis is rejected thus accepting the research hypothesis. This means that there is a relation among the variables being studied.
Se fundamenta en el siguiente principio: si el valor del chi es mayor o igual a 0,05 se acepta la hipótesis nula y se rechaza la de investigación, es decir, no hay relación entre las variables analizadas, y si es menor a este valor se rechaza la nula y se acepta la hipótesis de investigación, es decir, hay relación entre las variables de estudio.