[問題] 統計抽樣
You are to design a sample allocation with 4 strata, as follows.
Stratum, h Relative Size SD^2(h)
1 25% 50
2 20% 32
3 40% 8
4 15% 2
Find the sample allocation that minimizes the variance of your estimate of
the population mean.
You are required to have a minimum
sample size of 10 in each stratum.
Now, subject to that constraint, find the sample
allocation that minimizes the variance of your estimate of the population mean.
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