ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 197 - 202 of 253

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Question 197

Question

MCQ▾

If and are two Minimum Variance Unbiased (MVU) estimators for then

Choices

Choice (4)Response

a.

Either or

b.

c.

d.

All of the above

Question 198

Question

MCQ▾

For a simple linear model , the normal equations for estimating the values values of and by the method of least square will be

Choices

Choice (4)Response

a.

and

b.

and

c.

and

d.

None of the above

Question 199

Question

MCQ▾

Confidence intervals for the parameters , of the Normal distribution having density function , in case of known variance , is given by

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question 200

Question

MCQ▾

Let be a random sample from . Then the sufficient estimator for is

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question 201

Question

MCQ▾

Degrees of freedom for the mean in case of large sample size is … ; and in case of for the small sample size is …

Choices

Choice (4)Response

a.

and

b.

and

c.

and

d.

and n

Question 202

Question

MCQ▾

In a class of consistent estimators for a parameter, which one will you consider as the most efficient estimator?

Choices

Choice (4)Response

a.

One whose mean is less than the other estimators.

b.

One whose mean and variance both are less than the other estimators.

c.

One whose sampling variance is less than the other estimators.

d.

None of the above