Question # 1

If the null hypothesis is true the probability error is identified by what name

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b

1- b

a

1- a

In binomial distribution trails are:

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Independent

Dependent

Both

None of these

The variance of binomial distribution is:

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np

nq

npq

None of these

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

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a

1- a

b

1- b

Second moment about mean is

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Zero

One

Standard Deviation

Variance

An estimator is a

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Parameter

Constant

Random variable

Statistic

If the two variables are uncorrelated then the value of "r" is

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-1

0

F1

Fractional

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

Var (2x + 3) is:

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5 var (x)

4 Var (x)

4 Var (x) +3

4 Var (x) +9

For positively skewed binomial distribution

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p = 0

p < 0.5

p > 0.5

p = 0.5

Which index number may be weighted?

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Simple

Compositive

Both a and b

Fisher

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