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Comparing two means can be tricky in statistics since usually one of the groups is manipulated...

  • Comparing two means can be tricky in statistics since usually one of the groups is manipulated in some type of way (i.e., given a placebo). How do statisticians overcome this obstacle to generate good data?
  • Sometimes it is necessary to compare the means of several variables. When might this be the case? Why?
Math   Statistics-And-Probability   
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