A researcher wanted to estimate the average amount of money spent on extracurricular activities per school in a certain region.
The researcher randomly selected 20 public schools and 20 private schools in the region to use for a sample.
Which of the following best describes the type of sample that was taken?
A researcher wanted to estimate the average amount of money spent on extracurricular activities per school in a certain region.
The researcher randomly selected 20 public schools and 20 private schools in the region to use for a sample.
Which of the following best describes the type of sample that was taken?
The correct option is E A stratified random sample
Explanation for the correct option
Stratified random sample is a "method of sampling that involves the division of a population into smaller groups known as strata. In stratified random sampling or stratification, the strata are formed based on members' shared attributes or characteristics". And for this case it is the best option we have the strata defined and we apply the sampling method on these strata.
Hence, option is the correct answer.
A stratified random sample
Explanation for the correct option
Stratified random sample is a "method of sampling that involves the division of a population into smaller groups known as strata. In stratified random sampling or stratification, the strata are formed based on members' shared attributes or characteristics". And for this case it is the best option we have the strata defined and we apply the sampling method on these strata.
Hence, option is the correct answer.
