| 1 |
The elimination or addition of a few more time periods may change its |
- A. speed
- B. value
- C. direction
- D. none of these
|
| 2 |
ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2 |
- A. maximum
- B. constant
- C. minimum
- D. variable
|
| 3 |
The secular trend is measured by the method of semi-averages when: |
- A. Time series contains yearly value
- B. Trend is linear
- C. Time series contains odd number of values
- D. None of them
|
| 4 |
In a straight line equation Y = a + bX; a is the: |
- A. X - intercept
- B. Slope
- C. Y- intercept
- D. None of them
|
| 5 |
The graph of a time series is called |
- A. histogram
- B. polygon
- C. straight line
- D. historigram
|
| 6 |
The secular trend is measured by the method of semi-averages when |
- A. time series contains yearly values
- B. trend is linear
- C. time series contains odd number of values
- D. none of these
|
| 7 |
For a least squares linear trend Y = a + bx, the Σ(Y - Y)<sup>2</sup> = 0 when: |
- A. All the Y-values are positive
- B. All the Y-values lie on the line
- C. All the Y-values lie above the line
- D. None of these
|
| 8 |
The method of least square gives too much weight to extremely large deviations from the |
- A. population
- B. parameter
- C. sample
- D. trend
|
| 9 |
For a least squares line trend Y = a + bx, the b is the: |
- A. Intercept
- B. Slope
- C. Variable
- D. Trend
|
| 10 |
A business cycle has |
- A. one phase
- B. two phases
- C. three phases
- D. four phases
|