Answer true or false to each of the following statements and explain your answers. a. Prior knowledge about the relationship between the response variable and predictor variables should not be used in...

Answer true or false to each of the following statements and explain your answers.

a. Prior knowledge about the relationship between the response variable and predictor variables should not be used in the model building process.

b. It is never appropriate to use data from an observational study to perform a regression analysis.

c. In multiple linear regression, there is no guarantee that the model building process will find the “true” model relating the response variable to the predictor variables.