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If an ACF plot cuts off at lag 2, you can conclude it is an MA(2) process. 

Suppose Xt ~ IID(0, σ2). The series St = t*Xt + 3*Xt is stationary.

The Ljung-Box test is used to check for normality of residuals.

Which of the following is not a characteristic of a white noise process?

Suppose you fit the following ARIMA orders on the same dataset with the corresponding given AIC scores. Select the best model according to AIC using a threshold of 2. 

Label this picture.

To count words, click the Word Count indicator on the HOME tab to display the Word Count dialog box.

The ____________________ and Type feature can be used to format and enter text, graphics, and other items.

Retrieves webpage information from an index and creates a ranked list of results.

According to the MLA style, the _____ is a list of sources that are referenced directly in a research paper.