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Free download in PDF Time Series Analysis Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The second degree parabola is fitted to the time series when the variations are:
[A]
Linear
[B]
Nonlinear
[C]
Random
[D]
Downward
(2)
In fitting a second degree parabola, the value of c is not affected with the change of :
[A]
Scale
[B]
Origin
[C]
Both (a) and (b)
[D]
Neither (a) and (b)
(3)
For odd number of year, formula to code the values of X by taking origin at centre is:
[A]
X = year – average of years
[B]
X = year – first year
[C]
X = year – last year
[D]
X = year – ½ average of years
Answer: X = year – average of years
(4)
For even number of years when origin is in the centre and the unit of X being one year, then X can be coded as:
[A]
X = (year – average of years)/2
[B]
X = year – average of years
[C]
X = year – 0.5 average of years
[D]
X = average of years – year
Answer: X = year – average of years
(5)
For even number of years when origin is in the centre and the unit of X being half year, then X can be coded as:
[A]
X = year – average of years
[B]
X = 2(year – average of years)
[C]
X = (year – average year)/2
[D]
X = year – ½ average of years
Answer: X = 2(year – average of years)
(6)
In semi averages method, if the number of values is odd then we drop:
[A]
First value
[B]
Last value
[C]
Middle value
[D]
Middle two values
(7)
The trend values in freehand curve method are obtained by:
[A]
Equation of straight line
[B]
Graph
[C]
Second degree parabola
[D]
All of the above
(8)
∑X = ∑X3 = 0, if origin is:
[A]
At the end of time period
[B]
Any where
[C]
At the middle of time period
[D]
At the beginning of time period
Answer: At the middle of time period
(9)
Tests of hypotheses (t-test, f-test) incase of heteroscedasticity disturbance are
[A]
Still valid
[B]
Consistent
[C]
No longer valid
[D]
Unbiased
(10)
While performing correlation, we draw scatter plot to check assumptions of
[A]
Linearity
[B]
Multicollinearity
[C]
Unbiasness
[D]
Homoscedasticity
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