Unit test on the Unit Time Series ( includes Multiple Choice Questions, Short and Big answer questions)

                                                         Unit  Test   © 

Unit: Time Series                                

    Tot. Marks: 25                                                                                          Time : One Hour


Q:1 Choose the correct alternative.                                                                               (5)
1. The long term regular movement in a time series is called as ………
a) seasonal variation b) cyclical variations c) secular trend d) irregular variations
2. Periodic change in values of time series is ………
a) seasonal variation b) cyclical variations c) both a and b d) irregular variations
3. If all four components of time series operate independently then we use -----
a) additive model  b) multiplicative model  c) exponential model  d) none of these
4. The variation in the production due to strike in a company is ...…
a) seasonal variation b) cyclical variations c) secular trend d) irregular variations
5. To which component of time series the term recession is attached?
a) trend b) seasonal c) cyclical d) random variation
Q:2 Attempt any two                                                                                                    (5+5)
1. Describe the moving average method for determining trend.
2. What is secular trend? Describe the method of least squares to determine secular trend.
3. What is time series analysis? Explain its utility/ need / importance.
4. Discuss the simple average method for measuring seasonal variation.
Q:3 Attempt any one                                                                                                      (10)
1. Define time series. State the components of time series. Explain any one of them.
2. What are the different models for time series? Describe them.
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