MCQs Time Series 4

1. Irregular variations in a time-series are caused by

2. An additive model of a time-series with the components $T, S, C$, and $I$ is

3. If the origin in the trend equation $Y=a+bx$ is shifted backward by 2 years, the variable $X$ in the trend equation will be replaced by

4. Simple average method for finding out seasonal indices is good when

5. If the origin in a trend equation is shifted forward by 3 years, $X$ in the equation $Y=a+bx$ will be replaced by:

6. For the given five values 15, 24, 18, 33, 42, the three years moving averages are:

7. Value of $b$ in the trend line $Y=a+bX$ is

8. Irregular variations are

9. I multiplicative model of a time-series with components $T, S, C,$ and $I$ is

10. A method full of subjectivity to find out the trend line is

11. The moving average in a time-series are free from the influences of:

12. The equation $Y= \alpha \beta^x$ represents

13. A time-series consist of

14. If the trend line with 1995 as the origin is $Y = 20.6 + 1.68 X$, the trend line with origin 1991 is

15. Simple average method is used to calculate