The second level, Vienna city districts, improved the sampling quality further, as the random sampling procedure within the city district blocks was found to be robust.
To collect a representative sample, a stratified and clustered random sampling procedure was employed.
Observations are weighted to be consistent with the stratified random sampling procedure of ESWB.
This Jacobian can then analyzed analytically or numerically by a random sampling procedure.
Observations are weighted according to the stratified random sampling procedure of the ESWB.
Herbs were collected in the field with a random sampling procedure.
Random sampling procedure was adopted in selecting 418 households; 282 and 136 from a HIA and LIA respectively.
Samples in the first wave were collected nationwide in November 2005 through a two-stage random sampling procedure.11.11
Finally, in each invasion level of both locations, four plots were selected using a random sampling procedure.
The study sites (each a particular park) were selected using a stratified random sampling procedure, based on the size of the parks.
Data were collected from 336 engineers from four regions in Peninsula Malaysia, namely North, South, East and West, using stratified random sampling procedure.
