MCQ TIME SERIES

MCQ TIME SERIES

MCQ .1

An orderly set of data arranged in accordance with their time of occurrence is called:

(a) Arithmetic series (b) Harmonic series (c) Geometric series (d) Time series

MCQ .2

A time series consists of:

(a) Short-term variations (b) Long-term variations (c) Irregular variations (d) All of the above

MCQ .3

The graph of time series is called:

(a) Histogram (b) Straight line (c) Historigram (d) Ogive

MCQ .4

Secular trend can be measured by:

(a) Two methods (b) Three methods (c) Four methods (d) Five methods

MCQ .5

The secular trend is measured by the method of semi-averages when:

(a) Time series based on yearly values (b) Trend is linear

(c) Time series consists of even number of values (d) None of them

MCQ .6

Increase in the number of patients in the hospital due to heat stroke is:

(a) Secular trend (b) Irregular variation (c) Seasonal variation (d) Cyclical variation

MCQ .7

The systematic components of time series which follow regular pattern of variations are called:

(a) Signal (b) Noise (c) Additive model (d) Multiplicative model

MCQ .8

The unsystematic sequence which follows irregular pattern of variations is called:

(a) Noise (b) Signal (c) Linear (d) Non-linear

MCQ .9

In time series seasonal variations can occur within a period of:

(a) Four years (b) Three years (c) One year (d) Nine years

MCQ .10

Wheat crops badly damaged on account of rains is:

(a) Cyclical movement (b) Random movement (c) Secular trend (d) Seasonal movement

MCQ .11

The method of moving average is used to find the:

(a) Secular trend (b) Seasonal variation (c) Cyclical variation (d) Irregular variation

MCQ .12

A complete cycle consists of a period of:

(a) Prosperity and depression (b) Prosperity and recovery

(c) Prosperity and recession (d) Recession and recovery

MCQ .13

A complete cycle passes through:

(a) Two stages (b) Three stages (c) Four stages (d) Difficult to tell

MCQ .14

Most frequency used mathematical model of a time series is:

(a) Additive model (b) Mixed model (c) Multiplicative model (d) Regression model

MCQ .15

A time series consists of:

(a) No mathematical model (b) One mathematical model

(c) Two mathematical models (d) Three mathematical models

MCQ .16

In a straight line equation Y = a + bX; a is the:

(a) X-intercept (b) Slope (c) Y-intercept (d) None of them

MCQ .17

In a straight line equation Y = a + bX; b is the:

(a) Y-intercept (b) Slope (c) X-intercept (d) Trend

MCQ .18

Value of b in the trend line Y = a + bX is:

(a) Always negative (b) Always positive (c) Always zero (d) Both negative and positive

MCQ .19

In semi averages method, we decide the data into:

(a) Two parts (b) Two equal parts (c) Three parts (d) Difficult to tell

MCQ .20

The sum of squares of residuals is denoted by:

MCQ .21

In fitting a straight line, the value of slope b remain unchanged with the change of:

(a) Scale (b) Origin (c) Both (a) and (b) (d) Neither (a) and (b)

MCQ .22

If a straight line is fitted to the time series, then:

MCQ .23

Moving average method is used for measurement of trend when:

(a) Trend is linear (b) Trend is non linear (c) Trend is curvilinear (d) None of them

MCQ .24

When the trend is of exponential type, the moving averages are to be computed by using:

(a) Arithmetic mean (b) Geometric mean (c) Harmonic mean (d) Weighted mean

MCQ .25

The long term trend of a time series graph appears to be:

(a) Straight-line (b) Upward (c) Downward (d) Parabolic curve or third degree curve

MCQ .26

Indicate which of the following an example of seasonal variations is:

(a) Death rate decreased due to advance in science

(b) The sale of air condition increases during summer

(c) Recovery in business (d) Sudden causes by wars

MCQ .27

The most commonly used mathematical method for measuring the trend is:

(a) Moving average method (b) Semi average method

(c) Method of least squares (d) None of them

MCQ .28

A trend is the better fitted trend for which the sum of squares of residuals is:

(a) Maximum (b) Minimum (c) Positive (d) Negative

MCQ .29

Decomposition of time series is called:

(a) Historigram (b) Analysis of time series (c) Histogram (d) Detrending

MCQ .30

The fire in a factory is an example of:

(a) Secular trend (b) Seasonal movements (c) Cyclical variations (d) Irregular variations

MCQ .31

Increased demand of admission in the subject of computer in Pakistan is:

(a) Secular trend (b) Cyclical trend (c) Seasonal trend (d) Irregular trend

MCQ .32

Damages due to floods, droughts, strikes fires and political disturbances are:

(a) Trend (b) Seasonal (c) Cyclical (d) Irregular

MCQ .33

The general pattern of increase or decrease in economics or social phenomena is shown by:

(a) Seasonal trend (b) Cyclical trend (c) Secular trend (d) Irregular trend

MCQ .34

In moving average method, we cannot find the trend values of some:

(a) Middle periods (b) End periods (c) Starting periods (d) Between extreme periods

MCQ .35

The best fitting trend is one which the sum of squares of residuals is:

(a) Negative (b) Least (c) Zero (d) Maximum

MCQ .36

In fitting of a straight line, the value of slope remains unchanged by change of:

(a) Scale (b) Origin (c) Both origin and scale (d) None of them

MCQ .37

Depression in business is:

(a) Secular trend (b) Cyclical (c) Seasonal (d) Irregular

MCQ .38

In fitting of straight line = 0

(a) All the observed Y values lie on the line

(b) All the Y values are greater than corresponding values

(c) All the Y values are positive

(d) None of them

MCQ .39

Semi-averages method is used for measurement of trend when:

(a) Trend is linear (b) Observed data contains yearly values

(c) The given time series contains odd number of values (d) None of them

MCQ .40

Moving-averages:

(a) Give the trend in a straight line (b) Measure the seasonal variations

(c) Smooth-out the time series (d) None of them

MCQ .41

The rise and fall of a time series over periods longer than one year is called:

(a) Secular trend (b) Seasonal variation (c) Cyclical variation (d) Irregular variation

MCQ .42

A time series has:

(a) Two components (b) Three components (c) Four components (d) Five components

MCQ .43

The multiplicative time series model is:

(a) Y = T + S + C + I (b) Y = TSCI (c) Y = a + bX (d) Y = a + bX + cX2

MCQ .44

The additive model of the time series is:

(a) Y = T + S + C + I (b) Y = TSCI (c) Y = a + bX (d) Y = a + bX + cX2

MCQ .45

The difference between the actual value of the time series and the forecasted value is called:

(a) Residual (b) Sum of variation (c) Sum of squares of residual (d) All of the above

MCQ .46

A pattern that is repeated throughout a time series and has a recurrence period of at most one year is called:

(a) Cyclical variation (b) Irregular variation (c) Seasonal variation (d) Long term variation

MCQ .47

A business cycle has:

(a) One stage (b) Two stages (c) Three stages (d) Four stages

MCQ .48

When the production of a thing is maximum, this stage is called:

(a) Boom (b) Recovery (c) Recession (d) Depression

MCQ .49

When the production of a thing is minimum, this stage is called:

(a) Prosperity (b) Recession (c) Recovery (d) Depression

MCQ .50

When the production of thing is increasing towards prosperity, this stage is called as:

(a) Recession (b) Recovery (c) Boom (d) Depression

MCQ .51

When the production of thing is decreasing, this stage is called:

(a) Recession (b) Recovery (c) Prosperity (d) Depression

MCQ .52

The straight line is fitted to the time series when the movements in the time series are:

(a) Nonlinear (b) Linear (c) Irregular (d) Upward

MCQ .53

If an annual time series consisting of even number of years is coded, then each coded interval is equal to:

(a) Half year (b) One year (c) Both (a) and (b) (d) Two years

MCQ .54

A second degree parabola has:

(a) One constant (b) Two constant (c) Three constant (d) No constant

MCQ .55

The normal equations in fitting a second degree parabola are:

(a) Two (b) Three (c) Four (d) Five

MCQ .56

The second degree parabola is fitted to the time series when the variations are:

(a) Linear (b) Nonlinear (c) Random (d) Downward

MCQ .57

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)

MCQ .58

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

MCQ .59

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

MCQ .60

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

MCQ .61

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

MCQ .62

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

MCQ .63

ΣX = ΣX3 = 0, if origin is:

(a) At the end of time period (b) Any where