# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 112 - 115 of 253

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## Question number: 112

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MCQ▾

### Question

A school wants to study the number of days the students will be absent from school per year. It surveys attendance of 10 children and the number of days the children is absent from schools are

 12 13 9 11 7 8 4 9 5 8

Standard deviation . Then 95 % Confidence interval on population mean is

### Choices

Choice (4) Response

a.

8.6±2.05

b.

c.

6.55≤μ≤10.65

d.

All a. , b. and c. are correct

## Question number: 113

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MCQ▾

### Question

is an ________ where as is an ________

### Choices

Choice (4) Response

a.

Estimate and an estimator

b.

Estimator and an estimate

c.

None of the above

d.

All of the above

## Question number: 114

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MCQ▾

### Question

Suppose we want to estimate the mean amount of money spent by students on some project in a year. We have the following data of 10 randomly selected students. and calculated sample mean is 249 Rs. and standard deviation is 30 Rs. 95 % Confidence interval for is:

### Choices

Choice (4) Response

a.

256.89±290.68

b.

c.

d.

## Question number: 115

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MCQ▾

### Question

Let be a random sample from a density function . A statistics

is said to be sufficient statistics if the conditional distribution of given T

### Choices

Choice (4) Response

a.

Independent of

b.

Dependent of

c.

Independent of S

d.

Dependent of