# ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 152 - 155 of 253

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## Question number: 152

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MCQ▾

### Question

In a college survey, children were asked how many hours they study per day. A sample of 22 children is collected. The mean was 3.25 hours with a standard deviation of 1.57 hours. Then 95 % confidence interval for the number of hours of study per day is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 153

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MCQ▾

### Question

A hypothesis that says there is no statistical significance between the two variables is known as

### Choices

Choice (4)Response

a.

Null hypothesis

b.

Composite hypothesis

c.

Alternative Hypothesis

d.

Simple Hypothesis

## Question number: 154

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MCQ▾

### Question

The estimators obtained by the method of moments under general conditions are ________efficient than Maximum Likelihood Estimators.

### Choices

Choice (4)Response

a.

More

b.

Less

c.

Equally

d.

All of the above

## Question number: 155

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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 99 % Confidence interval on population mean is

### Choices

Choice (4)Response

a.

5.64≤μ≤11.56

b.

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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