What are the main differences between the Z test and t test? When is the one used over the other?
Students can work through the following steps to finish this essay:

  1. Research the fundamental concept and the hypothesis of using a Z test and t test.
  2. Research the use case and sample size of the Z test and t test.
  3. Research the difference between Z distribution and t distribution.
  4. Research the calculation of the Z score and t score.

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