A backward stepwise regression procedure is applied to select the best subset of four regressor variables , , y and xe which may have a linear reiationship with a response variable y. If now we need...

Solve 2nd problm and explain. Ty

Extracted text: A backward stepwise regression procedure is applied to select the best subset of four regressor variables , , y and xe which may have a linear reiationship with a response variable y. If now we need to check whether the variable xy should be removed or not, then is the equation that should be used to calculate the partial F-statistic value for this step. Select one: OTrue O False If a regression model is fitted for y against x) and x, and R is equal to 1, this necessarity means that the actual data points fall on a perfectly planar surface which has an angle of 145 relative to the xxX-plane. Select one O True O False