Use the results of Section 12.5 to determine an optimal allocation for a follow-up survey similar to that in Example 12.1.Assume that the relative costs are c(1) = 1 and ch = 20 for h = 1, 2, 3. Use the data in Example 12.1 to estimate quantities such as Wh and S2h. How does your allocation differ from the one used? From proportional allocation?