Which of the following time series components is associated with long-term movement in the data?a.Trendb.Seasonalityc.Cyclicald.RandomClear my choice

Which of the following is NOT a characteristic of time series data?a.Seasonalityb.Trendc.Randomnessd.Cross-sectional variationClear my choice

Which of the following statements is true about the secular trend in a time series?a.It remains constant over time.b.It exhibits a predictable pattern that repeats itself at regular intervals.c.It is unrelated to the time of yeard.It is not relevant for time series analysisClear my choice

In ratio to moving average method for seasonal indices, the ratio of an observed value to the moving average measure the influence of _________. a. both trend and cyclical variation b. both seasonal and irregular variation c. cyclical variation d. trend

The moving averages and exponential smoothing methods are appropriate for a time series exhibiting _____.Group of answer choicesa cyclical patterna horizontal patterntrendsseasonal effects

The component of a time series which is attached to short term variation is:Review LaterCyclic variationSeasonal variationIrregular variationAll of the above