Question 7
Which of the following statements about the Augmented Dickey-Fuller (ADF) test is correct?
The test is used to detect seasonality in a time series
A low p-value (e.g., < 0.05) indicates the time series is non-stationary
The test’s null hypothesis is that the time series is stationary
A low p-value (e.g., < 0.05) indicates the time series is stationary