continued last question for Vincent A. only

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my answers in bold

Question #4 

a)  Treatment :  Have a blue dyed solution to have no effect on bad breath

      Explanatory Variable:  the solution to the experiment

      Response Variable:  the outcome of the solution

b)    What type of experiment is this?   random block treatment     

c)    What is the ” blue dyed solution known to have no effect on bad breath” called in an experiment?  the treatment