February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Session 1- Fixed Sample Design: 51
Classical Hypothesis Testing
Classical One-sided Test (Greater Alternative)
Let
·q (a parameter) summarize treatment effect
·T (a statistic) tend to be large for larger q
·cU be a critical value chosen by some criterion
Null Hypothesis:             H0: q = q0
Alternative Hypothesis:  H1: q > q0
Reject H0                        ÜŞ         T ³ cU
Do not reject H0         ÜŞ         T < cU