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Collecting Data
Sampling and Surveys
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Statistics
Collecting Data
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16 Terms
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1
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Census
________: collection of data from every subject matter in population.
2
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Prospective
________: follows individuals to gain further data.
3
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Retrospective
________: examines existing data or asks about past behaviors.
4
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Statistic
________ is used to estimate the parameter.
5
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Population
________: whole collection of people that information is sought out from.
6
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Sample
________: specific bit of population where data is collected from.
7
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Population
whole collection of people that information is sought out from
8
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Census
collection of data from every subject matter in population
9
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Sample
specific bit of population where data is collected from
10
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Step 1
Randomly select starting point
11
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Step 2
Select every kth item after
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Step 1
How will sampled individuals differ from the rest of the population
13
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Step 2
How this results in overestimate or underestimate
14
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Retrospective
examines existing data or asks about past behaviors
15
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Prospective
follows individuals to gain further data
16
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Step 2
Use a method of random number selection and pick from each stratum to form the complete sample
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