random sampling

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the selection of a random sample

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While stratified random sampling is the most widely used approach, each state has its own unique guidance for sample design, implementation, and extrapolation.
x] charts under random sampling plans for different values of [delta].
A random sampling of 303 members of the Turnaround Management Association earlier this year reveal what corporate renewal professionals are observing as a result of credit tightening on troubled companies.
In the meantime, here's a random sampling of seasonal offerings:
Again, using random sampling techniques, Abt will recruit people with MS who don't go to doctors on a regular basis and people with MS who live in nursing homes.
Thus, cluster sampling is usually more efficient than simple random sampling when the population to be sampled is scattered over a wide area and considerable travel costs would be involved in drawing the simple random sample.
In a pivotal 1971 study, Daniel Kahneman of Princeton University and the late Amos Tversky of Stanford University argued that inaccurate assumptions about random sampling undermine people's ability to perceive events that genuinely go together.
A random sampling of baseball card stores around the area not only seem to show there's no real interest in the game from card hobbyist, but because the photographs of the players on many of the tickets are so out-of-register - the Drysdale piece in particular looks like some generic bad oil painting - a real collector would find nothing aesthetically pleasing about them unless he had a particularly strong player fetish.
The intent here is to provide insights into the relative sensitivity of stratified and random sampling methods in detecting a single stratum shift in a multi-strata process.
Subject attrition can lead to the violation of the assumption of random sampling in subsequent data collection in longitudinal research.
She prepared two questionnaires: One appeared in our April issue that is a shorter version of another mailed to a random sampling of subscribers at the same time.
It is a multiplier by which people can estimate standard errors used by statistical methods, based on simple random sampling from standard errors obtained in a survey sample design using non-random sampling methods.