10/24/2008

Umbrella Alternatives

• Different types of umbrella alternatives
• Mack-Wolfe Test Procedure
  • Calculate the Mann-Whitney counts for all possible pairs of treatments.
  • Mack-Wolfe Statistic (Ap)
  • Mack-Wolfe Test
    • Table A.14 contains critical values for balanced designs.
  • L.S.A.
  • Dealing with ties
    • Use a permutation test to get an exact p-value.
• Exercise 25 on p. 225