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A researcher wishes to study the effect of a new drug on blood pressure.  Answer and explain all questions

  • Would you recommend using a z-test, a t-test, or an ANOVA for the analysis?  Explain your answer.
  • What would your choice of test depend on?  For the test you select, explain your design and your comparison groups. 
  • Would the hypothesis be directional or non-directional? 
  • Would the test be one-tailed or two-tailed? 
  • What would be the null and what would be the alternative hypothesis?
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