ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 138 - 141 of 246

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Question number: 138

» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators

MCQ▾

Question

If Equation and Equation are two estimators for Equation , such that Equation and Equation , then

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Either Equation or Equation

d.

Question does not provide sufficient data or is vague

Question number: 139

» Statistical Inference and Hypothesis Testing » Moments and Least Squares

MCQ▾

Question

Generally the estimators obtained by the method of moments as compared to Maximum Likelihood estimators are:

Choices

Choice (4) Response

a.

Less Efficient

b.

More Efficient

c.

Equally Efficient

d.

Question does not provide sufficient data or is vague

Question number: 140

» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality

MCQ▾

Question

Which of the following options is appropriate for the Cramer-Rao Inequality, where

Equation is an unbiased estimator Equation -

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 141

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

For a normal population Equation , the variance of the sample mean and sample variance are given Equation Equation . Then the efficiency of median against mean is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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