sampling frame การใช้

• The sample frames at the right have very fine inking.
• It results from gaps between the sampling frame and the total population.
• Some researchers have used search engines to construct sampling frames.
• It should be expected that sample frames, will always contain some mistakes.
• Furthermore this could be achieved within a sample frame of only around 256 respondents.
• These surveys were closely modeled after the HRS in sample frame, design and content.
• The primary sampling frame is the Census Bureau s Master Address File ( MAF ).
• The import merchandise sampling frames are obtained from the U . S . Customs Service.
• The reference period for a sampling frame is generally the most recent available 12 months.
• For example, the Department of Transportation provides the sampling frames for the air freight price indexes.
• Even among the sampling frames of various breeds, there is no guarantee of a random sample.
• It also means that one does not need a sampling frame listing all elements in the target population.
• The content of a site may also differ across users, requiring careful specification of the sampling frame.
• It requires a complete sampling frame, which may not be available or feasible to construct for large populations.
• From the sampling frame, a starting point is chosen at random, and choices thereafter are at regular intervals.
• Because no sampling frame is used to draw the sample of participants, open access polls may not have participants that represent the larger population.
• The first-stage sampling frame contained 2, 919 primary sampling units ( PSUs ), consisting of 2-and 4-year colleges and universities.
• Hence the voxel's intensity value at other times not in the sampled frames can be calculated by filling in the dots to create a continuous curve.
• In the non-response bias was the primary source of this error, although their sampling frame was also quite different from the vast majority of voters.
• From a listing of districts / communities as a sampling frame, individual entities ( communities, towns, districts ) are randomly assigned to waves of intervention.