# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 119 - 124 of 253

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## Question 119

### Question

MCQ▾

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 120

### Question

MCQ▾

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 121

Edit

### Statement

True-False▾

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

## Question 122

### Question

MCQ▾

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

## Question 123

### Question

MCQ▾

In general, the estimates obtained by the method of moments are ________

### Choices

Choice (4)Response

a.

Asymptotically normal but not efficient

b.

Asymptotically normal and always efficient

c.

Not asymptotically normal but efficient

d.

None of the above

## Question 124

### Question

MCQ▾

The joint probability density function of the sample variates is called ________

### Choices

Choice (4)Response

a.

Confidence limits

b.

Likelihood function

c.

Minimum Variance Unbiased MVU estimator

d.

None of the above