Question

Explain how the nonprobability technique of quota sampling can be used to mimic the probability technique of stratified random sampling. Give an example.

Answer 1

Answer :

Non probability technique :

Non-probability technique is an inspecting method where the examples are accumulated in a procedure that doesn't give every one of the people in the populace equivalent odds of being selected.Most scientists are limited by time, cash and workforce and in light of these restrictions, it is practically difficult to random sample probability sampling strategy.

Quota Sampling :

Quota sampling is a non-probability sampling procedure wherein the analyst guarantees equivalent or proportionate portrayal of subjects relying upon which attribute is considered as premise of the quota.

For ex, if premise of the quota is school year level and the specialist needs equivalent portrayal, with an example size of 100, he should choose 25 first year understudies, another 25 second year understudies, 25 third year and 25 fourth year understudies. The bases of the amount are normally age, sexual orientation, training, race, religion and financial status.

In quota sampling, a population is first divided into totally unrelated sub-gatherings, similarly as in stratified sampling. At that point judgment is utilized to choose the subjects or units from each portion dependent on a predefined extent.

For ex, a questioner might be advised to test 200 females and 300 guys between the age of 45 and 60. This implies people can put an interest on who they need to test (focusing on).