Show that when the optimal allocation is used, the variance of (2) str for two-phase sampling

Question:

Show that when the optimal allocation is used, the variance of  (2) str for two-phase sampling with stratification is given by (12.18).
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Sampling Design And Analysis

ISBN: 627

2nd Edition

Authors: Sharon L. Lohr

Question Posted: