Which is true when comparing a stratified sample and a simple random sample? A.

Question

Which is true when comparing a stratified sample and a simple random sample?

A. Estimates of population parameters for population subgroups may also be desired and will be computed in completing the analysis for stratified samples. B. The bound on the error of estimation is smaller with a simple random sample. C. Every individual in the population has an equal chance of being selected when completing a stratified sample and thus will give a better estimate. D. In estimating a total, knowing the population size is not required when using a stratified sample. E. All of the above

Explanation / Answer

A. Estimates of population parameters for population subgroups may also be desired and will be computed in completing the analysis for stratified samples.

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