Chapter 17

1. Explain the principle of randomization.

2. What is the reason that rank randomization tests rather than pure randomization tests are conducted.

3. Which is more powerful: randomization or rank randomization tests? Why?

4. Conduct a rank randomization test, a randomization test, and a t test for the data shown below. Make all tests two-tailed.

 

Group 1 Group 2
   9      5
   7      2
   12     8
   16     4
   14    10 


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