The purpose of the weighted average in stratified sampling is:
A) to provide an overall sample average that represents the true distribution of the population.
B) to provide more weight to those strata whose averages are the lowest.
C) to provide more weight to those strata whose averages are the highest.
D) to provide an overall sample average that represents the majority of the strata.
E) to provide more weight to those strata that are more important to society.

Question

Quizplus · Accepted Answer

The purpose of the weighted average in stratified sampling is to provide an overall sample average that represents the true distribution of the population. This is achieved by assigning weights to each stratum based on its proportion in the population and using these weights to calculate a weighted average across all strata. The resulting weighted average provides a more accurate estimate of the population mean than a simple average of the sample data.

The Purpose of the Weighted Average in Stratified Sampling Is