Question

What is the primary benefit of a stratified random sampling method compared to a simple random sample.
A. It is less bias than a simple random sample
B. It gives les variable results then a simple random sample
C. It is easier to carry out then a simple random sample
D. It allows cause-and-effect conclusions

Answer 1

The primary benefit of a stratified random sampling method compared to a simple random sample is it is less biased than a simple random sample.

• The stratified sampling method classifies heterogeneous units into homogeneous units.
• The whole population is represented while selecting to scale back the bias.
• The formula of stratified random sampling is "(sample size/population size) x stratum size".
• In a simple random sampling, the population isn't segregated.
• Simple random sampling thus increases the researcher bias and confines the sampling to some proportion of the population only.