I developed a multiple regression model, which I would like to use for the prediction. I designed the model based on a training dataset and applied it using a test dataset.
Now I have the comparison of my prediction and the real observation.
How can I now evaluate whether the predictive model...
I have a regression model of the following form to investigate: y =b_0 + b_1 * x_1 + b_2 * sqrt(x_2)
Now I want to give an interpretation of the model and I do not know how to interpret the influence of x_2 respectively b_2.
The formulation for x_1 would be: An additional...