Explain the difference between a stratified random sample and a proportionate stratified sampling. When would a research use each sampling technique?
What will be an ideal response?
Ans: Stratified random sampling allows for the comparison between groups with random sampling. Stratified random sampling is a technique that is valuable when the study is focused on understanding, comparing, or analyzing different groups of a population. This requires equal numbers of participants from each group. Proportionate stratified sampling is a type of sampling that follows the proportions of the population but also creates specific strata that are of interest to the study.
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