BUS 402 Lecture Notes - Lecture 5: Telephone Directory, Nonprobability Sampling, American Medical Association
Document Summary
Any complete group of entities that share some common set of characteristics. An investigation of all the individual elements that make up a population. A subset, or some part, of a larger population. 3. reduces labor requirements: gathers vital information quickly. In a field survey, a small, well-trained, closely supervised group may do a more careful and accurate job of collecting information than a large group of nonprofessional interviewers who try to contact everyone. In a sample, increased accuracy may sometimes be pos- sible because the fieldwork and tabulation of data can be more closely supervised. Destruction of test units if a manufacturer of firecrackers wished to find out whether each unit met a specific production standard, no product would be left after the testing. For consumer-related research, the appropriate population element frequently is the household rather than an individual member of the household. This presents some problems if household lists are not available.
