ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 51 - 55 of 246

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Question number: 51

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

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

Equation is an unbiased estimator of Equation if Equation

Choices

Choice (4) Response

a.

If Equation

b.

If Equation

c.

If Equation

d.

If Equation

Question number: 52

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Consistent estimator

b.

Biased Estimator

c.

Unbiased estimator

d.

All of the above

Question number: 53

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

The difference between the expected value of an estimator and the value of the corresponding parameter is called:

Choices

Choice (4) Response

a.

Error of estimation

b.

Sampling error

c.

Standard error

d.

Bias

Question number: 54

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

Let Equation be a random sample of size n = 3 from a distribution with mean Equation and varianceEquation . Then Equation is a unbiased estimator of

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 55

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

A biased estimator is consistent if

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

None of the above

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