# Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 126 - 131 of 222

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 246 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

## Question number: 126

» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality

MCQ▾

### Question

Cramer-Rao Inequality provides a ________ to the variance of an unbiased estimator for a parameter.

### Choices

Choice (4) Response

a.

Lower bound

b.

Upper bound

c.

Upper bound and Lower bound

d.

All of the above

## Question number: 127

» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses

MCQ▾

### Question

________ states that there is statistical difference between two variables.

### Choices

Choice (4) Response

a.

Simple Hypothesis

b.

Null Hypothesis

c.

Alternative Hypothesis

d.

Statistical hypothesis

## Question number: 128

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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: 129

» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses

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: 130

» Statistical Inference and Hypothesis Testing » Moments and Least Squares

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

Equally

b.

More

c.

Less

d.

Question does not provide sufficient data or is vague

## Question number: 131

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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.

b.

5.64 ≤ μ ≤ 11.56

c.

Both a. and b. are correct

d.

None of the above

f Page