Page 39 - 2000 (3) Agricultural Census 2000, Procedure & Data Tables Punjab( Enhance)

sub-division (g), then the
/\ r2 qj (Nk - N\ - N"k) R.V.for the district with g = 1 to
yh'2jkl'
yh'2 = I(I I u sub-divisions in the district is
k I'" ph'2jk LI /\
2
I ( RVYW ) Y w
9
9
Qj N"k yh'2jkl" g
i'
+ I I ] RVYW =
k I" ph'2j LI /\
( I Yw )2
9
then, R.V. for the sub-division g
and
estimate of aggregates of the
attribute is obtained by taking
u /\
square of differences between 2
I ( RVXW ) X wg
9
estimates for successive pairs g
of half strata divided by the RVXW =
sub-division estimates as
LI /\
follows:- ( I Xw )2

/\ /\ g 9
/\ /\ L' yh'1 -Yh'2 R.V. estimates for provinces
= I [ ]2 and country levels have also
h' /\ been worked out on the same
y
pattern as at the district level,
Similarly, R.V. for the sub-
division estimate of units having (2) Non-Sampling Errors
the attribute is : -

The errors other than those due
I\ I\
to sampling are called non-
/\ /\ L' xh·1 - xh·2 sampling errors. These
I',·
Var.(X) = [C.V.(X)f = I [--- ] 2 include errors in sampling
h' /\
.frame, selection of the
X sample, enumeration, incorrect
Per cent Sampling Error, i.e.
response due to biases and
ignorance, errors in recording
(C.V.) = I R.V. x 100
answers, processing errors, etc.

b) Estimates at District, Province
Interestingly, sampling and non-
and Country Levels
sampling errors are negatively
related. In other words, an
If the R.V. for the aggregate of increase in sampling error
characteristic (W) for sub- would cause a decrease in the
division (g) is denoted by non-sampling error and vice

RVYW and .Yw is the estimate versa. Normally, an increase in
9
9
for the aggregate (Y) sampling error 1s due to
of characteristic (W) for decrease in sample size.

( XXXVII)