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Statistical Surveys and OLAP
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Statistical survey: A popular tool to collect information about a
population
based on a
sample
- Ex.: TV ratings, US Census, election polls
- A common tool in politics, health, market research, science, and many more
- An efficient way of collecting information (Data collection is expensive)
- Many statistical tools available, to determine validity
- Confidence intervals
- Hypothesis tests
- OLAP (multidimensional analysis) on survey data
- highly desirable but can it be done well?
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