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Statistics for Real-Life Sample Surveys - Non-Simple-Random Samples and Weighted Data (Paperback)
Loot Price: R1,470
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Statistics for Real-Life Sample Surveys - Non-Simple-Random Samples and Weighted Data (Paperback)
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Samples used in social and commercial surveys, especially of the
general population, are usually less random (often by design) than
many people using them realise. Unless it is understood, this
???non-randomness??? can compromise the conclusions drawn from the
data. This book introduces the challenges posed by
less-than-perfect samples, giving background knowledge and
practical guidance for those who have to deal with them. It
explains why samples are, and sometimes should be, non-random in
the first place; how to assess the degree of non-randomness; when
correction by weighting is appropriate and how to apply it; and how
the statistical treatment of these samples must be adapted.
Extended data examples show the techniques at work. This is a book
for practising researchers. It is a reference for the methods and
formulae needed to deal with commonly encountered situations and,
above all, a source of realistic and implementable solutions.
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