Suppose that S is a subset of m units from U, and suppose S has mh units
Question:
We can write P (S) as
Then,
Also
Transcribed Image Text:
P(S) = P(Zi = 1, İ E S. and Zi = 0, i S) P(F, = 1, i E S) Nm1 I m1 nH n2 m2 Ni TLI NH nH n2 total number of stratified samples containing S number of possible stratified samples n1 MH 7AV TLH RH m1 mm2 Note that for each h, mh nh mh rmh Tlh (Nhmh)! nh Consequently th Ilh mh so this procedure results in an SRS of size m
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