Question: When it is appropriate to use a z test? When it is appropriate to use a one-sample t test? Why is the one-sample t test

  1. When it is appropriate to use aztest?
  2. When it is appropriate to use a one-samplettest?
  3. Why is the one-samplettest called "one sample?
  4. What is the main difference between theztest and the one-samplettest?

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