Suppose that S is a subset of m units from U, and suppose S has mh units

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Suppose that S is a subset of m units from U, and suppose S has mh units from stratum h, for h = 1, . . . , H. Let Zi = 1 if unit i is selected to be in the final sample and 0 otherwise; similarly, let Fi = 1 if unit i is selected to be in the stratified sample and 0 otherwise, and let Di = 1 if unit i is selected to be in the subsample chosen from the stratified sample and 0 otherwise. Then the probability that S is chosen to be the sample is
Suppose that S is a subset of m units from

We can write P (S) as

Suppose that S is a subset of m units from

Then,

Suppose that S is a subset of m units from

Also

Suppose that S is a subset of m units from
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Sampling Design And Analysis

ISBN: 627

2nd Edition

Authors: Sharon L. Lohr

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