A Typical Opinion Poll Uses a Sample Size of Between

Multiple Choice

A typical opinion poll uses a sample size of between 1000 and 1500 people. The Current Population Survey samples 50,000 households every month to gather data on employment and unemployment. The main advantage of the much larger sample is that:

A) there is less bias in a large random sample.
B) a large random sample has a smaller margin of error.
C) a larger random sample allows use of stratified sampling.
D) nonsampling errors are smaller in a large random sample.