February, 2003
© 2000, 2001, 2003 Scott S. Emerson, M.D., Ph.D.
Session 1- Fixed Sample Design: 73
Quantifying Statistical Evidence
Standard choices for “level of confidence” in conclusions
Bayesian inference:
·95% credible intervals
Frequentist inference:
·95% confidence intervals
·Type I error
-one-sided level .025; two-sided level .05
·Power to detect the alternative
-.975 is consistent with 95% CI