Question

1. You want to conduct some research on the effectiveness of two types of treatment on patient survival. You randomly assign 40 patients into treatment A, 40 patients into treatment B, and 40 patients into a control group. Patient survival is measured as Dead or Alive.
   1. What is the independent and dependent variable?
   2. How is the dependent variable scaled?
   3. Do you need to assess for normality? If yes, is the population distribution normal? If not, can you invoke the central limit theorem?
   4. What statistical test should the researcher use to analyze the data?

Answer 1