Question # 1

A statement about the value of a population parameter is called:

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Null hypothesis

Alternative hypothesis

Simple hypothesis

Composite hypothesis

CD-ROM is a type of

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hard disk

soft disk

floppy disk

optical disk

For a least squares linear trend Y = a + bX

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ΣY = ΣY

ΣY = 0

ΣY > ΣY

None of them

The ___________ allow you to type information into the computer.

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Mouse

Scanner

Printer

Keyboard

The graph of time series is called:

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Histogram

Historigram

Straight line

Ogive

Points of inflexion of normal curve are at

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μ and σ

x=μ-σ and x=μ+σ

μ and 2σ

μ = o

A characteristic which varies in quality form one individual to another is called

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variable

constant

attribute

none of these

A quantitative statement about a population is called:

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Research hypothesis

Composite hypothesis

Simple hypothesis

Statistical 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

The sum of deviations=Σ(y-ŷ) =

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0

1

10

-1

A single value used to estimate a population value is called:

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Interval estimate

Point estimate

Confidence interval

Level of confidence

One byte equal:

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4 bits

6 bits

8 bits

12 bits

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b_yx

b_xy

S_p

Joystick is an example of:

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Input devices

Output devices

Processing devices

Storage devices

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

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Noise

Signal

Additive model

Multiplicative model

The Level of ------------- of test is the maximum probability with which we are willing to a risk of type -I error

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correction

error

significance

statistics

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

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maximum

constant

minimum

variable

A range of values within which the population parameter is expected:

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Confidence interval

Confidence coefficient

Confidence limits

Level of significance

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