February, 2003
© 2000, 2001 Scott S. Emerson, M.D., Ph.D.
Session 3: 6
Schedule of Analyses
Example: Stopping rule chosen at design
Test of normal mean:
·Null:            m £ 0.0
·Alternative: m ³ 0.5
One-sided symmetric test
·Size .025, Power .975
·Four equally spaced analyses
·Pocock (1977) boundary relationships