Question # 1

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

Choose an answer

Middle periods

End periods

Starting periods

Between extreme periods

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

Choose an answer

Noise

Signal

Linear

Non-linear

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

Choose an answer

Nine years

Four Years

Three years

One year

Which one is a rough and crude method for measuring secular trend ?

Choose an answer

free hand curve method

semi average method

moving averages method

least square method

A business cycle has

Choose an answer

one phase

two phases

three phases

four phases

For a least squares line trend Y = a + bx, the b is the:

Choose an answer

Intercept

Slope

Variable

Trend

In the measurement of secular trend the moving averages

Choose an answer

give the trend in a straight line

measure the seasonal variations

smoothes out a time series

measure irregular fluctuations

The elimination or addition of a few more time periods may change its

Choose an answer

speed

value

direction

none of these

The least squares estimates are unbiased estimates of the

Choose an answer

statistic

time series

parameters

variance

The rise and fall of a time series periods longer than one- year is called.

Choose an answer

Secular trend

Seasonal variation

Cyclical variation

Irregular variation

The graph of time series is called:

Choose an answer

Histogram

Historigram

Straight line

Ogive

The equation of the quadratic (parabolic) trend is

Choose an answer

ŷ=a+bx

ŷ=a+by

ŷ=a+bΣx+cΣx²

ŷ=a+bx+cx²

Sum of squares of residuals is denoted by

Choose an answer

∑e

∑e²

∑e³

∑e⁴

For a least squares linear trend Y = a + bX

Choose an answer

ΣY = ΣY

ΣY = 0

ΣY > ΣY

None of them

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

Choose an answer

time series contains yearly values

trend is linear

time series contains odd number of values

none of these

For a least squares linear trend=ŷ = a + bx, b is the

Choose an answer

variable

intercept

trend

slope

ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2

Choose an answer

maximum

constant

minimum

variable

More Classes

Other Links

ICS Part 2 Statistics Chapter 16 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer