Question 20 4 pts Mark whether the following statements are either True or False

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Question 20 4 pts Mark whether the following statements are either True or False statements Stepwise regression is a tool that is useful for helping to identify which independent variables should be included in a regression analysis. ?True O False DQuestion 21 4 pts Mark whether the following statements are either True or False statements Extrapolation is the term used for when a regression model is used to predict the value of the dependent variable for values of the x's that fall outside the range of the data that has been collected. For example, we predict the value of a 4000 square foot home when the sizes of homes in our data set range between 1500 and 3000 square feet. True False 4 MacBook Air

Explanation / Answer

Answer 20

It is TRUE, because we know that the stepwise regression is a type of regression in which we make our regression equation correct by removing some extra predictors which are not much effective in the regression equation.

So, it is TRUE

Answer 21

It is TRUE because Exploration is the process by which we extend the limit of regression analysis, as the extrapolation is used when we want to predict the output using the regression equation by providing an input which is outside the range of variables used in the formation of regression equation.

So, it is TRUE

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