| 1 |
The sum of deviations=Σ(y-ŷ) = |
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| 2 |
Sum of squares of residuals is denoted by |
- A. ∑<i>e</i>
- B. ∑<i>e</i><sup>2</sup>
- C. ∑<i>e</i><sup>3</sup>
- D. <span style="font-size: 14.399999618530273px;">∑</span><i style="font-size: 14.399999618530273px;">e</i><sup>4</sup>
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| 3 |
The systematic components of time series which follow regular pattern of variations are called: |
- A. Noise
- B. Signal
- C. Additive model
- D. Multiplicative model
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| 4 |
Methods of semi-averages gives an |
- A. accurate result
- B. objective result
- C. authentic result
- D. none of these
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| 5 |
The unsystematic sequence which follows irregular pattern of variations is called: |
- A. Noise
- B. Signal
- C. Linear
- D. Non-linear
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| 6 |
In the measurement of secular trend the moving averages |
- A. give the trend in a straight line
- B. measure the seasonal variations
- C. smoothes out a time series
- D. measure irregular fluctuations
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| 7 |
The basic components of a time series are: |
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| 8 |
For a least squares linear trend=ŷ = a + bx, b is the |
- A. variable
- B. intercept
- C. trend
- D. slope
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| 9 |
Which one is a rough and crude method for measuring secular trend ? |
- A. free hand curve method
- B. semi average method
- C. moving averages method
- D. least square method
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| 10 |
The rise and fall of a time series periods longer than one- year is called. |
- A. Secular trend
- B. Seasonal variation
- C. Cyclical variation
- D. Irregular variation
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