ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 128 - 132 of 253

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Question number: 128

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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MCQ▾

Question

A confidence interval for of the Normal distribution, when is unknown is given by

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 129

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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MCQ▾

Question

If we increase the sample size and confidence interval at the same time then the length of the Confidence interval become

Choices

Choice (4)Response

a.

More

b.

Remains the same

c.

Smaller

d.

Cannot be determined from the given information

Question number: 130

» Statistical Inference and Hypothesis Testing » Complete Statistics

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Question

If is a family of distributions and is any statistic such that , then is called as

Choices

Choice (4)Response

a.

Efficient Statistics

b.

Consistent Estimator

c.

Complete Statistics

d.

Sufficient Statistics

Question number: 131

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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MCQ▾

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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MCQ▾

Question

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

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