# Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 150 - 154 of 222

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## Question number: 150

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

### Question

Formula for 95 % Confidence interval for the variance of the Normal distribution when is known, is given by

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 151

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 152

» Statistical Inference and Hypothesis Testing » Rao-Blackwell Theorem

MCQ▾

### Question

Rao-Blackwell Theorem enables us to obtain MVUE through:

### Choices

Choice (4) Response

a.

Efficient statistics

b.

Complete Statistics

c.

Sufficient statistics

d.

Unbiased Estimator

## Question number: 153

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

### Question

A 95 % confidence interval is shown as . This means

### Choices

Choice (4) Response

a.

Probability that lies in the interval 60.84 and 96.5 is 0.95

b.

The length of the confidence interval is 35.66

c.

60.84 and 96.5 are 95 percent confidence limits

d.

All a. , b. and c. are correct

## Question number: 154

» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators

MCQ▾

### Question

If is an MVU estimator of for all and is any other unbiased estimator of with efficiency , then the correlation coefficient between is given by

all

### Choices

Choice (4) Response

a.

for all

b.

for all

c.

for all

d.

for all

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