Lesson 12: Census and Sampling

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October 10, 2016 at 10:00 am  •  Posted in f16-busad265 by  •  0 Comments

Mon, Oct 10

Review:

  • Exam corrections due now
  • Design of Experiments

Presentation:

  • Census and Sampling
    • Census = attempt to count entire population
      • US Census every 10 years
      • Most costly non-military federal government operation (except maybe bailing out banks)
    • Sample = gather info from a portion of the population
      • Sample Types
        • Voluntary response sample
          • Complete an optional survey
          • Inherent bias
          • Example: Google Survey
        • Simple random sample
          • select from a population
          • each individual has equal chance of being selected
          • Example: random selection of subset of enrolled students
        • Stratified random sample
          • divide population into groups or strata
          • random sampling, equal chance of selection within each group
          • Example: random selection within major (30% CIS, 35% Mgmt, 35% Econ)
    • Census and Sampling Video

Activity:

Assignment:

  • Read pp. 197-203, Sampling Design

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