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5 Written questions

5 Multiple choice questions

  1. 75/100 * N
  2. is 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. is an alternative to a census, in which data is collected from only some members of the population.
  4. Max-min
  5. is a sampling method which uses random or probabilistic selection as part of its design.

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. capture-recaptureMax-min

          

  3. double-blind studyis 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.

          

  4. mean75/100 * N

          

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