s ex # size .7 5 5 sf p W1 W - .53 - .9 p 0,1,5O(G.95,P*1.5) 0,2,4O(G.85) t Confidence Limits for Spline Power Estimates xts .85 xa .82 1 .01 - 5 y Estimate/True HI Power yo 0.02