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Produce the ACF plot of the residuals of the fitted model in Part (c). If the model fits the data well, the residuals should behave
Produce the ACF plot of the residuals of the fitted model in Part (c). If the model fits the data well, the residuals should behave like white noise. One of the features of the white noise is independence. Based on the ACF plot, do the residuals (w1,w2, ...) seem independent from each other? Please explain. Hint: usemodelName$residuals to get the residuals.
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