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Statistical Analysis (images from Applied Statistics in Occupational…
Statistical Analysis (images from Applied Statistics in Occupational Safety and Health, by Christopher A. Janick, Bernan Press, Third Edition, copyright 2017 unless stated otherwise)
Statistics: A set of methematical techniques used by social scientists to manipulate and analyze data fro he purposes of answering questions and testing theories.
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Terms
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Population: Everyone in group, census
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Statistics: A set of mathematical techniques used by social scientists to manipulate and analyze data for the purposes of answering questions and testing theories
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Error: The difference between what the researcher would have obtained form the population and the obtained sample results.
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Sampling techniques
Cluster sampling: Used when differences are expected by a naturally occurring grouping like geography, political district, area nation, etc.
Stratified Random Sampling: When differences in results are anticipated based on sunbject's membership in a group.
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