Question # 1

Methods of semi-averages gives an

Choose an answer

accurate result

objective result

authentic result

none of these

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

Choose an answer

speed

value

direction

none of these

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

Choose an answer

X - intercept

Slope

Y- intercept

None of them

For a least squares linear trend Y = a + bX

Choose an answer

ΣY = ΣY

ΣY = 0

ΣY > ΣY

None of them

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

The sum of deviations=Σ(y-ŷ) =

Choose an answer

0

1

10

-1

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

Choose an answer

Time series contains yearly value

Trend is linear

Time series contains odd number of values

None of them

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

Choose an answer

Nine years

Four Years

Three years

One year

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

Choose an answer

linear

quadratic

cubic

constant

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

Choose an answer

Noise

Signal

Additive model

Multiplicative model

Increase the number of patients in the hospital due to heel stock is:

Choose an answer

Seasonal trend

Secular trend

Cyclical movements

Irregular variation

The graph of time series is called:

Choose an answer

Histogram

Historigram

Straight line

Ogive

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

Choose an answer

Noise

Signal

Linear

Non-linear

The multiplicative time series model is:

Choose an answer

Y = T + S + C + I

TSCI

Y = a + bX

Y = a + bX + cX²

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

For a least squares linear trend ŷ = a + bx, the Σ(y-ŷ)² = 0 when

Choose an answer

all the y-values lie on the line

all the y-values are positive

all the y-+values lie above the line

none of these

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

Choose an answer

variable

intercept

trend

slope

The method of least square gives too much weight to extremely large deviations from the

Choose an answer

population

parameter

sample

trend

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

Choose an answer