Question

True or False: The intercept model does not have the slope term. So it is an oversimplified model with poor prediction performance, and seldom used in assessing the prediction performance of other models. Briefly justify your conclusion.

Answer 1

It is true that the intercept model does not have the slope term. It has only an intercept value. It is an oversimplified model because it gives a fixed or constant value for all x.

For e.g.: y=5 is an intercept model. In simple words, we can say that the mean of a variable is an intercept model. Yes, it is a over simplified model.

In the intercept model, We have only intercept in a model that means there is no dependency on the independent variable. That's it is seldom used and gives poor prediction as compared to other models.