Economics · Time Series Analysis
Which of the following statements is incorrect regarding the components of a time series?
- 1A non-seasonal cycle is a repetitive, possibly unpredictable, pattern in the series values.
- 2A sudden, temporary shift is referred to as a pulse.
- 3A trend is a gradual upward or downward shift in the level of the series.
- 4Shifts in the level of a time series that cannot be explained are referred to as seasonal cycles.✓
Correct answer
Shifts in the level of a time series that cannot be explained are referred to as seasonal cycles.
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