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MMLU / A psychologist believes that positive rewards for proper behavior are more…

Problem

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question

A psychologist believes that positive rewards for proper behavior are more effective than punishment for bad behavior in promoting good behavior in children. A scale of "proper behavior" is developed. μ1= the "proper behavior" rating for children receiving positive rewards, and μ2= the "proper behavior" rating for children receiving punishment. If H0: μ1− μ2= 0, which of the following is the proper statement of HA?

choices

  1. HA: μ1− μ2> 0
  2. HA: μ1− μ2< 0
  3. HA: μ1− μ2≠ 0
  4. Any of the above is an acceptable alternative to the given null.

subject

high_school_statistics

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