Coefficient of variation (CV) is used to obtain the reliability of estimates.
Allocation of sample size for a particular sample survey among ultimate strata is made using Proportional allocation methodology.
The different estimation formulas are used for computation of sample size at desired level of confidence with certain margin of errors. Consequently, sample size is fixed keeping in view the available resources and time constraints.
Two stage stratified sampling technique is used.
Updation of new sampling frame is in progress.
The “Quick Count” is the process of counting structures, households, dwellings, establishments, industries, within a demarcated block by going around without undertaking listing.
The “Listing” is the process of (Getting started from North West corner or some prominent point/landmark, moving clockwise, the closing point of the sector will coincide with starting point) listing structures, households, dwellings, establishments, industries, within a demarcated block by “asking” from door to door.
The lists of enumeration blocks were updated during Economics Census 2003 - 2004 and the lists of villages/mouzas/dehs published by Population Census Organization as a result of 1998 Population Census have been taken as sampling frame.
All the urban areas comprising cities/towns have been divided into small areas known as Enumeration blocks. EB usually have 200-250 households on the average, with well-defined boundaries and maps.
In both Rural and Urban domains the enumeration blocks are taken as Primary Sampling Units (PSUs).
The listed households of sample PSUs are considered Secondary Sampling Units (SSUs).
Primary Sampling unit is a geographical urban/rural area containing 200-250 households on the average.
An eligible member for which the required information is collected is called the sampling unit. Whereas the aggregate of the sampling units comprises the sample size.