Which statistical method is used to determine whether there is a significant difference between observed and forecasted values in time series analysis?
A. Augmented Dickey-Fuller test
B. Ljung-Box test
C. Granger causality test
D. Forecast Error Testing
Answer: Option D
Related Questions on Time Series Analysis
What is the primary characteristic of a time series data set?
A. Random data
B. Data points are not related
C. Data is collected at irregular intervals
D. Data is collected over time
A. Outliers
B. Trends
C. Seasonality
D. Noise
A. Stationary
B. Seasonal
C. Trend
D. White noise
What is the primary goal of "detrending" in time series analysis?
A. To remove seasonality from the data
B. To remove outliers from the data
C. To identify trends in the data
D. To add noise to the data
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