Question # 1

If any value in the data set is zero, then it is not possible to compute

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H.M

A.M

Median

Mode

The number of tally count for each value is its

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Range

Frequency

Class boundaries

Class mark

The base period in fixed base should be

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A normal year

Average of normal years

Any year

None of these

Mean deviation about the median is

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Maximum

Minimum

zero

1

Sample mean is a

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Constant

Parameter

Variable

Statistic

For a two tailed test of hypothesis at alpha = 0.10, the acceptance region is the entire region

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To the right of the critical value

Between the two critical values

Outside of the two critical values

To the left of the positive critical value

A sample is a representative part of a

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Continuous

Discrete

Population

Parameter

_______ is the chance variation in an observation.

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Random error

Mean

Deviation

Discrete Varibale

The main function of a computer is

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Data storage

Speed

Data Processing

None of these

The data which have not undergone any statistical treatment are ________ data

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Primary

Secondary

Grouped

None of these

Which of the following would likely be a seasonal component of a time series

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Holidays

Population growth

Law suits

None of these

First-hand collected data is called

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primary data

secondary data

grouped data

ungrouped data

The most common measures of absolute variability are also called

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Range

Measures of spread

Relative measures

Mean deviation

The degree of relationship between the two attributes is called

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Association

Dichotomy

Variable

None of these

A fire in a factory delaying production for 3 weeks is an example of

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Seasonal variation

Secular Trend

Cyclical fluctuations

Irregular Movements

Mean deviation is always

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Greater than S.D

Less than S.D

Equal to S.D

Negative

If a set contains a specific number of elements then it is called

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Finite set

Infinite set

Universal set

Disjoint set

A symmetrical distribution has mean equal to 4. Its mode will be

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Less than 4

Equal to 4

Greater than 4

None of these

For a particular test, alpha = 0.05 and beta = 0.10. The power of this test is

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0.15

0.90

0.85

0.95

The probability density function of a continuous random variable Y is specified by a

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straight line

Rectangle

Smooth curve

Circle

A discrete variable is also known as

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Continuous

Discontinuous

Random Variable

Deviation

The seasonal variations are

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Long term movements

Short term movements

Cyclical fluctuations

Secular trend

When statistics is applied in Economics, it is called:

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Psychometry

Econometrics

Economistics

Trigonometrics

Which of the following is/are unbiased estimators

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Sample mean

Sample proportion

Sample variance

All of these

1 GHz equals to

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1024 Hz

10⁴MHz

10²MHz

1024 MHz

A.M is _______ affected by extreme values

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Not

Highly

Less

None of these

The area under the probability density function is

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1

0

Minimum

None of these

If no attributes are specified, then the order of the class is

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0

1

n

None of these

Link relatives are not directly comparable because they have

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Fixed base

Not fixed base

Zero values

None of these

The statement of the alternative hypothesis never contains a(n) ________ sign regarding the specified value of the parameter

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equal

greater than

less than

None of these

The ______ is a systematic component of variation in a time series.

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Historigram

Signal

Noise

Time period

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