ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 118 - 122 of 253

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Question number: 118

» Statistical Inference and Hypothesis Testing » Factorization Theorem

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MCQ▾

Question

is sufficient for if and only if the joint density function , of the sample values can be expressed in the form

where depends on and only through the value of and is independent of . This Theorem is known as

Choices

Choice (4)Response

a.

Factorization Theorem

b.

Blackwell Theorem

c.

Rao-Blackwell Theorem

d.

Cramer-Rao Theorem

Question number: 119

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

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MCQ▾

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Efficiency of sample mean as compared to median as an estimate of the mean of a normal population is

Choices

Choice (4)Response

a.

22 percent

b.

64 percent

c.

360 percent

d.

157 percent

Question number: 120

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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MCQ▾

Question

Formula for obtaining 99 % confidence limits for the mean μ of a Normal population with mean μ and standard deviation σ are

Choices

Choice (4)Response

a.

b.

c.

d.

All a. , b. and c. are correct

Question number: 121

» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses

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True-False▾

Question

Is the Following Statement True or False?

The null hypothesis is generally assumed to be ________ until evidence indicates otherwise.

Question number: 122

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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MCQ▾

Question

Suppose The confidence interval is given by the relation . Then is called as the

Choices

Choice (4)Response

a.

Correlation Coefficient

b.

Confidence coefficient

c.

Confidence interval

d.

None of the above

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