This preview shows page 1. Sign up to view the full content.
Unformatted text preview: to loop on s02 since L is ﬁxed at 1; eliminate this loop. Based on your modiﬁed code, construct a scatterplot of the power as a function of n; what range of n values gives you good power to detect L = 1? 3. With σ 2 = 4, modify power.sas to compute power for a range of choices of L and n ; it helps if you rewrite the noncentrality parameter nc as a function of L . The output ﬁle should contain the power for a grid of values of n and L . 4. Produce a power contour plot in Minitab (see homepage for using Minitab’s contour plot). You may have to manipulate your choice of n in order to obtain a satisfactory plot. What are some choices of (L,n) for the .80 power contour? 1...
View Full Document
This note was uploaded on 10/01/2009 for the course STAT stat706 taught by Professor Johnm.grego during the Spring '08 term at South Carolina.
- Spring '08