highly significantp < 0.01
The response surface regression model for fluoride adsorption had an F -value of 148.94 and a P -value of P < 0.0001, indicating a highly significant ( p < 0.01) effect of the model.
The response surface regression model for fluoride adsorption had an F -value of 148.94 and a P -value of P < 0.0001, indicating a highly significant ( p < 0.01) effect of the model.