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The data set mantel in the alr4 package has a response Y and three predictors x1,...

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Statistics

The data set mantel in the alr4 package has a response Y andthree predictors x1, x2 and x3.

(a) Apply the forward selection and backward eliminationalgorithms, using AIC as a criterion function. Report yourfindings.

(b) Use regsubsets() function in R to determine the best model.Which appear to be the important predictors? What’s the finalmodel? Explain your reasoning.

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Rcode is installpackagesalr4    See Answer
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