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5 Written questions

5 Multiple choice questions

  1. Max-min
  2. is an extreme data point that does not t into the overall pattern of the rest of the data.
  3. 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.
  4. for a data set consists of the minimum value in the data set
    Min, the fi rst quartile Q1, the median M = Q2, the third quartile Q3, and the maximum value Max.
  5. is a variable which represents a measurable quantity,
    one which can be represented by a number.

5 True/False questions

  1. 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.

          

  2. Q375/100 * N

          

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

          

  4. random samplingis 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.

          

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

          

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