February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Session 1- Fixed Sample Design: 59
Defining the Hypotheses
Decision Theoretic Framework: One-sided tests
(Assume large q corresponds to benefit)
Test of a greater alternative (q+ > q0)
·Null:               H0: q £ q0     (equivalent or inferior)
·Alternative:    H1: q ³ q+     (sufficiently superior)
Decisions:
·Reject H0  ÜŞ  T ³ cU               (superior)
·Reject H1  ÜŞ  T £ cU   (not sufficiently superior)
·