Management and Organizational Studies 4485F/G Chapter Notes - Chapter 11: Tim Hortons, Standard Deviation, Simple Random Sample
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The concept of sampling: sampling is the process of obtaining information from a subset of a larger group, then using it to estimate the characteristics of the larger group, must be selected in a manner that is representative. Sample versus census: sample: subset of all the members of a population, census data obtained from almost all members of the population of. Identify a sampling frame: a list of the members or elements of the population from which units to be sampled are selected, specify a procedure for generating such a list, eg. Little reduction from bigger samples: non sampling error or measurement error includes all factors other than sampling error, non response bias. Respondents who respond and don"t respond are different. Highest among urban, single person households and households without children. Check for differences in late respondents and early respondents. Late respondents tend be similar to non respondents. Factors that are correlated with the behavior of interest.