Let N be the size of a population and n be the size of the sample. Then the efficiency of SRSWOR with respect to SRSWR is:
\(\displaystyle \frac{N-n}{N-1}\)
The efficiency of SRSWOR (Simple Random Sampling Without Replacement) with respect to SRSWR (Simple Random Sampling With Replacement) is given by the formula:
Efficiency = (N - n) / (N - 1), where N is the population size and n is the sample size.
Important Questions from Sample
Arrange in sequence the steps involved in the sampling process
A. Choose between probability and nonprobability sampling
B. Specify sampling unit
C. Validate sample
D. Determine the necessary sample size
E.Select appropriate sampling frame
Choose the correct answer from the options given below:
Which one of the following is NOT an essential characteristic of data?
Which of the following are correct about Questionnaire?
(a) In open ended question, specific responses are taken through ranking, scaled items and categorical responses.
(b) In ranking, respondent place the response in a rank order according to some criteria.
(c) In scaled item, respondent indicate the strength of their agreement only.
(d) In categorical response, respondent are given only two responses such as 'yes' or 'no'.
Choose the correct option from the codes :
Given below are two statements:
Statement I: If a population from which a sample is to be drawn does not constitute a homogenous group, stratified sampling technique is generally applied in order to obtain a representative sample.
Statement II: In the case of small samples, z-test is applied even if the population standard deviation is not available (given).
In the light of the above statements, choose the most appropriate answer from the options given below:
- Which of the example requires snowball sampling technique?
