Sampling Techniques-Simple Random Sampling and Sampling With Probability Proportional to Size (ISS Statistics Paper III): Questions 1 - 1 of 1

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 90 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Sampling Techniques » Simple Random Sampling and Sampling With Probability Proportional to Size

Appeared in Year: 2013

Essay Question▾

Describe in Detail

In simple random sampling without replacement (SRSWOR), the sample mean y is an unbiased estimator of population mean Y . Obtain the variance of the estimator of the population total Y.

Explanation

Sample mean y is an unbiased estimator of population mean Y i. e.

Sample mean is given by y=1ni=1nyi

It can also be written as y=1ni=1Nai… (382 more words) …

Sign In