ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 131 - 134 of 253

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Question number: 131

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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Question

Consider the general form of confidence interval for the mean .

In this expression is known as ………. and is known as ……………….

Choices

Choice (4) Response

a.

Critical value, Standard Deviation

b.

Point estimate, Critical Value - standard error

c.

Control limit, variance

d.

All of the above

Question number: 132

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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If the expected value of an estimator is not equal to its parametric function , it is said to be a

Choices

Choice (4) Response

a.

Sufficient estimator

b.

Unbiased estimator

c.

Consistent estimator

d.

Biased estimator

Question number: 133

» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators

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Question

Which of the following results are true for Minimum Variance Unbiased Estimator (MVUE) -

Choices

Choice (4) Response

a.

If nd are MVUE of and then will be an MVUE of

b.

MVUE is unique

c.

The correlation coefficient between a most efficient estimator and any other estimator with efficiency is .

d.

All a. , b. and c. are correct

Question number: 134

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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If an estimator of population parameter converges in probability to as n tends to infinity is said to be

Choices

Choice (4) Response

a.

Consistent

b.

Unbiased

c.

Sufficient

d.

Efficient