Question: Mike concluded that there were no differences in self-confidence between those who had received his intervention and those in the control group.However, there were true

  1. Mike concluded that there were no differences in self-confidence between those who had received his intervention and those in the control group.However, there were true differences, and Mike's intervention did actually work.Mike's conclusion represents
  2. a Type I error.
  3. a Type II error
  4. both a Type I and Type II error.
  5. a Type III error.

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