sample

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Related to Simple random sample: stratified random sample

sample

  1. part of a total population that can be analysed to make inferences about the whole population (see SAMPLING).
  2. a small amount of raw material or finished product whose quality or performance can be tested as a guide to the quality or performance of a whole batch of material or product (see QUALITY CONTROL, ACCEPTANCE SAMPLING).
  3. a small trial pack of a product or brand which is used to encourage buyers to try it out (see SALES PROMOTION).
References in periodicals archive ?
However, many commonly utilized statistical packages default to the assumption that data were collected through a simple random sample (SRS).
Assuming that the prevalence of bullying victimisation is 20% in the group with the lower rate and wishing to have 80% power to detect a difference of 5% between the groups (that is, 20% in one and 25% in the other), the required number of students per group for a simple random sample is 1140 students.
A simple random sample of 150 poultry farmers were selected.
Survey data were analyzed by region as simple random samples, except British Columbia, where the sample design was stratified with optimum allocation of effort and could not be treated as a simple random sample.
Researchers, therefore, cannot conduct their data analyses as they would when using a simple random sample.
The survey respondents were not a simple random sample of RNZFB members, with the working-age membership being over-sampled.
Each group is a simple random sample from its population.
An unbiased simple random sample of eighty fourth-year students (2006/2007) of the English Department at the Faculty of Education in Kafr El-Sheikh has been chosen to carry out the experiment.
A simple random sample of the population served by PPHC was used, divided into six strata representing the six health subcenters.
The following abridged version of one asynchronous discussion thread involving the interpretation of the definition of simple random sample (SRS) demonstrates the power of the withhold intervention.
The effective sample size is the size of a simple random sample that would achieve the same precision as this more complex sampling design.

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