"Is it better to have a large sample that is biased, or a small sample that is nonbiased?" he asks in a UW news release.
A back-up B sample that is always taken was not switched.
All of these things together mean that getting a random survey sample that is nationally representative is incredibly difficult.
The household survey is based on a sample that is then extrapolated to the whole population.
Each drug test involves a urine sample that is split into two parts, known as the A sample and the B sample.
Only a handful of pollsters that conduct statewide surveys routinely provide this data, like the percentage of the sample that is male, or African-American, or under 30 or college-educated.
The result may be a sample that is unrepresentative of the population of interest.
We construct a sample that is best suited for our structural approach.
Table 1 reports the characteristics of the baseline sample that is used in the analysis.
"The American Community Survey is a small sample that is more representative of the underlying population; Facebook is a very large sample but not representative.
Calorimetry allows measurement of stoichiometry and so evaluation of the proportion of the sample that is functional.
