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5 Written questions

5 Multiple choice questions

  1. 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.
  2. Max-min
  3. 25/100 * N
  4. 75/100 * N
  5. is an extreme data point that does not t into the overall pattern of the rest of the data.

5 True/False questions

  1. capture-recaptureN=n1*n2/k


  2. random samplingis a sampling method which uses random or probabilistic selection as part of its design.


  3. 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.


  4. surveyis an alternative to a census, in which data is collected from only some members of the population.


  5. five-number summaryis 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.


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