NAME: ________________________

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5 Written Questions

5 Multiple Choice Questions

  1. Max-min
  2. is one of the contributing factors to sampling error. It is the result of choosing a bad sample. Good methods of sample selection minimize sample bias.
  3. is a sampling technique in which every member of the population should have the same (random) chance of being in the sample as any other member of the
    population.
  4. is an alternative to a census, in which data is collected from only some members of the population.
  5. is a controlled placebo study in which neither the subjects nor the scientists conducting the study know which subjects are in the treatment group and which are in the control group.

5 True/False Questions

  1. outlieris an extreme data point that does not t into the overall pattern of the rest of the data.

          

  2. confounding variableis a possible contributing cause in a clinical study or trial that
    could produce the same effect as the variable under investigation. A good clinical study or trial attempts to eliminate confounding variables using a control group.

          

  3. mean25/100 * N

          

  4. Q325/100 * N

          

  5. capture-recaptureN=n1*n2/k

          

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