BUS 300 Lecture Notes - Lecture 10: Stratified Sampling, Complete Group, Telephone Directory
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. Strong similarities in population elements makes sampling possible. Sampling may be more accurate than a census. Sampling reduces the costs of research in finite populations. Whom do we want to talk to: population is operationally defined by specific and explicit tangible characteristics. A list of elements from which a sample may be drawn; also called working population. Sampling frame error: occurs when certain sample elements are not listed or are not accurately represented in a sampling frame. Provide lists or databases of the names, addresses, phone numbers, and e- mail addresses of specific populations. Reverse directory: a directory similar to a telephone directory except that listings are by city and street address or by phone number rather than alphabetical by last name.
