Question # 1

In case of normal distribution the area to the left of the mean and area to the right of the mean is

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positive

negative

equal

unequal

Which error is occurred when the defendant were found guilty if, infect the defendant is innocent

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type-I

type-II

no error

both a and b

The _______ regression line always passes through (X̅, y̅).

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Opposite

Estimated

Estimates

Random

The alternative hypothesis is also called:

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Null hypothesis

Statistical hypothesis

Research hypothesis

Simple hypothesis

A hypothesis that specifies all the value of parameter is called:

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Statistical hypothesis

Simple hypothesis

Composite hypothesis

None of these

If sampling is done without replacement then=σ =

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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

The variable, that forms the basis of estimation, is called_______.

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Regression

Regressor

Regressand

Estimated

The graph of time series is called:

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Histogram

Historigram

Straight line

Ogive

If the value of any regression coefficient is zero, then two variable are _______.

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Qualitative

Correlation

Dependent

Independent

If Ho: μ <μoand H1:μ <μoand level of significance is=α then Ho will be rejected if

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Z < Z=α

Z < Z=α/2

Z < Z 1-α

Z < Z1-α/2

The S.D of the sampling distribution of a statistics is called _______.

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Standard error

Serious error

Dispersion

Difference

CD-ROM is a type of _________.

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Optical disk

Hard disk

Soft disk

Compact disk

Sum of squares of residuals is denoted by

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∑e

∑e²

∑e³

∑e⁴

A complete list of elements in a population is called

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population

sampling design

sampling frame

sampling unit

Machine language is in the form of

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1 and 2

0 and 1

1 and 3

0 and 3

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

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variable

intercept

trend

slope

The graph of a time series is called

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histogram

polygon

straight line

historigram

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