Question # 1

The probability that the confidence interval does not contain the parameter is denoted by:

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a

1- a

b

1- b

A disadvantage of range is that it is based on

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Absolute deviation

Squared deviations

Two extreme observation

For r x c contingency table the number if degrees of freedom equals

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(r - 1) + ( c -1)

(r -1) (c - 1)

1

(r x c) -1

The probability of an event can never be

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Zero

1

0.5

Negative

1- a is also called

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level of significance

Power of test

Size of test

Confidence co-efficient

Var (2x + 3) is:

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5 var (x)

4 Var (x)

4 Var (x) +3

4 Var (x) +9

The lowest value of variance is:

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1

0

-2

None of them

Number of ways a committee of 3 members can be selected from 5 members of a club is

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10

60

15

120

For the standardized normal variate P(0Σ z Σ1) =...............

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0.34135

0.47725

0.49867

0.33725

The variance of 5,5,5,5,5,is

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0

25

5

125

Second moment about mean is

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Zero

One

Standard Deviation

Variance

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