| 1 |
In time series seasonal variations can occur within a period of: |
- A. Nine years
- B. Four Years
- C. Three years
- D. One year
|
| 2 |
The additive model of the time series is: |
- A. Y = T + S + C + I
- B. TSCI
- C. Y = a + bX
- D. Y = a + bX + cX<sup>2</sup>
|
| 3 |
The trend values in freehand curve method are obtained by: |
- A. Equation of straight line
- B. Second degree parabola
- C. Signal
- D. Graph
|
| 4 |
The method of least square gives too much weight to extremely large deviations from the |
- A. population
- B. parameter
- C. sample
- D. trend
|
| 5 |
The elimination or addition of a few more time periods may change its |
- A. speed
- B. value
- C. direction
- D. none of these
|
| 6 |
The basic components of a time series are: |
|
| 7 |
The sum of deviations=Σ(y-ŷ) = |
|
| 8 |
For a least squares linear trend=ŷ = a + bx, b is the |
- A. variable
- B. intercept
- C. trend
- D. slope
|
| 9 |
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>
|
| 10 |
The multiplicative time series model is: |
- A. Y = T + S + C + I
- B. TSCI
- C. Y = a + bX
- D. Y = a + bX + cX<sup>2</sup>
|
