Unformatted text preview: problem (propose a diﬀerent design, identify the design and explain how you would test for a route eﬀect)? 3. Gulf, Florida and South Carolina red snapper are tested for population homogeneity. Suppose the variation in the number of times a short tandem repeat marker appears at a polymorpic site has standard deviation 10. How many ﬁsh from each population should be sampled if treatment eﬀect τ = (-4 , , 4) is to be detected with 80% power ( α = . 05)? Suppose we want to study treatment eﬀect τ = (-k, , k ) as a function of sample size. What sample sizes do we need to detect τ with 80% power for choices of k from 4 to 10? 1...
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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