ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 48 - 52 of 253

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Question number: 48

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

Question

A random sample of size 5 is drawn from a normal population with mean and . And if , , Which one is the best estimator in terms of variance?

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 49

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

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If is the variance of a random sample from an infinite population with mean μ and finite variance . Then is -

Choices

Choice (4)Response

a.

Unbiased estimator of

b.

Biased estimator of

c.

d.

None of the above

Question number: 50

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

Question

Let be a random sample of size n from a large population with mean μ and variance . Which of the following statement is correct?

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 51

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

Question

If , _is a random sample of size n, from , a statistic

is an unbiased estimator of if

Choices

Choice (4)Response

a.

If

b.

If

c.

If

d.

If

Question number: 52

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

Question

If an estimator of parameter , converges in probability to the true value of , then the estimator is called as

Choices

Choice (4)Response

a.

Biased Estimator

b.

Consistent estimator

c.

Unbiased estimator

d.

Question does not provide sufficient data or is vague

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