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

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

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.

Cannot be determined from the given information

c.

Remains the same

d.

Smaller

Question number: 130

» Statistical Inference and Hypothesis Testing » Complete Statistics

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Sufficient Statistics

b.

Efficient Statistics

c.

Complete Statistics

d.

Consistent Estimator

Question number: 131

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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.

Control limit, variance

c.

Point estimate, Critical Value - standard error

d.

All of the above

Question number: 132

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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.

Unbiased estimator

b.

Consistent estimator

c.

Biased estimator

d.

Sufficient estimator

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