Question # 1

In the measurement of secular trend the moving averages:

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Give the trend in a straight line

Measure the seasonal variations

Smooth out a time series

None of these

In normal distribution.

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Mean > median > mode

Mean = median = mode

Mean < median < mode

None of these

By increasing the sample size, the precision of confidence interval is:

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Decreased

Increased

Constant

Unchanged

If sampling is done with replacement the σ_p =

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Regression line x on y is

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The descriptive measures of a population are called_______.

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Census

Parameter

Statistics

Bias

The moment Coefficient of kurtosis is

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β₁

β₂

Zero

m₂

In the measurement of secular trend the moving averages

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give the trend in a straight line

measure the seasonal variations

smoothes out a time series

measure irregular fluctuations

The error which arises due to faulty sampling frames and processing of data is called

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random error

sampling error

non-sampling error

systematic error

Super computers can process million of instructions:

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Per second

Per microsecond

Per minute

Per hour

The critical region of=χ2distribution is

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χ2 <χ2v; 1-α

χ2 <χ2v;1-α

χ2 <χ2 v;1-α/2

χ2 <χ2v;1-α/2

In case of normal distribution maximum value of ordinate is

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μ

Zero

P(type I error) is equal to:

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1 - α

1 - β

α

β

RAM is called

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primary storage

secondary storage

tertiary storage

tetra storage

The degree of relationship between the two attributes is called

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regressor

correlation

regressand

association

A high speed memory that is built in processor is called

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built in memory

cache memory

internal memory

external memory

The hypothesis which we are willing to accept when the null hypothesis is rejected is called

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simple hypothesis

composite hypothesis

null hypothesis

alternative hypothesis

The most common measurement unit for describing a computer's memory is

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bits

mega bytes

bytes

kilobytes

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