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The examples below use Stata 9. If you are using Stata versions 7 or 8, please see this page.NOTE: If you want to see the design effect or the misspecification effect, use estat effects after the command.
This example is taken from Levy and Lemeshow's Sampling of Populations.
page 106 repeated systematic sampling
input cluster xi wt1 xibar M 2 15 9 5 54 13 13 9 4.33 54 31 12 9 4.00 54 34 10 9 3.33 54 46 21 9 7 54 53 10 9 3.33 54 end
svyset [pweight = wt1], fpc(M)
pweight: wt1
VCE: linearized
Strata 1: <one>
SU 1: <observations>
FPC 1: M
svy: mean xibar
(running mean on estimation sample)
Survey: Mean estimation
Number of strata = 1 Number of obs = 6
Number of PSUs = 6 Population size = 54
Design df = 5
--------------------------------------------------------------
| Linearized
| Mean Std. Err. [95% Conf. Interval]
-------------+------------------------------------------------
xibar | 4.498333 .5310139 3.133318 5.863348
--------------------------------------------------------------
svy: total xi
(running total on estimation sample)
Survey: Total estimation
Number of strata = 1 Number of obs = 6
Number of PSUs = 6 Population size = 54
Design df = 5
--------------------------------------------------------------
| Linearized
| Total Std. Err. [95% Conf. Interval]
-------------+------------------------------------------------
xi | 729 85.94882 508.0615 949.9385
--------------------------------------------------------------
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