ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 239 - 242 of 246

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: 239

» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality

MCQ▾

Question

The denominator in the Cramer-Rao inequality is known as

Choices

Choice (4) Response

a.

Upper bound of the Variance

b.

Lower Bound of the variance

c.

Information Limit

d.

None of the above

Question number: 240

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we want to find out the mean milk yield of the cows in India, a survey of 66831 cows was made and the mean milk yield was 12.5 liter with a standard deviation of 4.3 liter. Then the 95 % confidence interval for the average milk yield is

Choices

Choice (4) Response

a.

[11.46, 13.53]

b.

[10.46, 12.53]

c.

[12.46, 12.53]

d.

[10.46, 11.53]

Question number: 241

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

For a normal population (μ,σ2) , the variance of the sample mean and sample variance are given by V(x¯)=σ2n and V(MD)=πσ22n . Then which of the following is true?

Choices

Choice (4) Response

a.

Sample mean is more efficient estimator for μ than the sample median

b.

Sample mean and Sample median are efficient

c.

Sample median is more efficient estimator for μ than the sample mean

d.

All of the above

Question number: 242

» Statistical Inference and Hypothesis Testing » Simple and Composite Hypotheses

MCQ▾

Question

A Statistical Hypothesis, which does not specifies the population completely, is known as

Choices

Choice (4) Response

a.

Composite Hypothesis

b.

Simple Hypothesis

c.

Null Hypothesis

d.

Alternative Hypothesis

Sign In