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Why is it important that a sample be random

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For its validity, all hypothesis testing depends heavily on the assumption that the sample was drawn using probability sampling techniques. For this discussion, answer the following:

  • Why is it important that a sample be random?
  • What can you do if you cannot use a probability sampling technique? (For example, suppose there is no good sampling frame available for the population of interest.)
  • Provide an example of a population and explain how you would collect a random sample from that population.

Reference no: EM131299092

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