When using area sampling, a researcher should seek a balance between statistical efficiency, which suggests __________, and economic considerations, which suggest __________.
a. the need for accuracy, that benefits be considered
b. a small number of areas be used, few areas be used
c. a large number of areas be used, few areas be used
d. that a small sample size can be used to predict accurately, possible losses due to faulty predictions can be costly
e. that a large number of areas be used, a large number of observations within each area be collected
Question 2
The primary advantage of area sampling plans is
a. area sampling data is easy to tabulate and analyze.
b. they don't require probability based methods of element selection.
c. results can be generalized from one area to another without loss of statistical efficiency.
d. they don't require a list of elements from the population of interest.
e. the results are more understandable for the general public than other, more complex plans.
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