Question # 1

100(1-α)% confidence interval for population proportion of success,&=nbsp;π is

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P (L <μ < U) = 1 - α

P (L <σ < U) = 1 - α

P (L <π< U) = 1 - α

P (L <P&=nbsp;< U) = 1 - α

The straight line graph of the linear equation Y = a + bX, the slope will be upward it_______.

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b = 0

b < 0

b > 0

b ≠ 0

The multiplicative time series model is:

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Y = T + S + C + I

TSCI

Y = a + bX

Y = a + bX + cX²

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

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Noise

Signal

Additive model

Multiplicative model

Machine language is in the form of

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1 and 2

0 and 1

1 and 3

0 and 3

If the observations are paired and the number of pairs is n, then the number of degree of freedom is equal to

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n

n - 1

2n

2n - 1

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

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Regression

Regressor

Regressand

Estimated

Super computers can process million of instructions:

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Per second

Per microsecond

Per minute

Per hour

1 MB equals _________byes

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1,094,265

1,904,265

1,048.576

The value of the coefficient of correlation relies between__________.

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-1 and +1

0 and 1

-1 and 0

-0.5 and + 0.5

The two attributes A and B are ________associated, If (AB) < (A)(B)/n.

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Positively

Negatively

Zero

Symmetrical

Second moment about mean is also called

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mean

variance

skewness

standard deviation

When the expected frequencies are very small the value of=χ2has been

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adjusted

omitted

changed

all of these

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37

132

32

cannot be calculated

Which output is permanent ?

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hard copy

real copy

soft copy

none of these

If Ho:π >πo , H1:π <πo and level of significance is=α then Ho will be rejected if

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Z < Z=α

Z=α/2 < Z

Z > Z1-α

Z < Z1-α

The value of chi-square statistic is always _______.

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Negative

Non-negative

Zero

One

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

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