If Done Correctly,stratified Sampling Can Actually Decrease the Standard Error

question 63

Multiple Choice

If done correctly,stratified sampling can actually decrease the standard error of the estimator by

• A) making sure the strata are more homogeneous on the variables for which statistics will be calculated
• B) making sure each strata forms a representative sample of the population
• C) decreasing the number of categories within each of the variables for which statistics will be calculated
• D) making sure the sample is sufficiently large to ensure a lower sampling error

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