Page 23 - Agricultural Census 2000 NWFP Vol II Part 1
P. 23

SAMPLING PLAN                                                 This      sample       design       was
                                                                   basically  the  same  as  used  in  1972,
                   It  was  considered  necessary  to              1980        and       1990        Agricultural
            adopt  different . sample  designs  for                Censuses.            However,            minor
            different parts of the country in view of              improvements in  the design and slight
            the  varied       local    conditions      and         changes  in  the size were  made in  the
            availability  of  relevant  information  for           design  used  for  1990  Agricultural
            selecting  a  sample.  Therefore,  the                 Census       to    further      reduce      the
            entire  country  was  divided  into  three             sampling       variability     without       an
            distinct  parts  for  the  purpose  of                 appreciable  increase  in · the  sample
            sampling,  detailed as below :-                        size.

                                                                          The  choice  of  three  stage
            a)  Rural  settled  areas  of  NWFP,
                                                                   sample design was based  not only on
                Punjab      and     Sindh      Provinces;
                                                                   sampling  considerations  but  also  in
                where  a  three  stage  weighted  and
                                                                   view  of  a  number  of  administrative
                stratified sample was used.
                                                                   considerations  to  control  the  non-
                                                                   sampling  errors.  For  example,  the
            b)  Rural  settled  areas  of  Balochistan
                                                                   selection  of  patwar  circles  in  the  first.
                and  Azad  Jammu  & .  Kashmir;
                                                                   stage  made  it  possible  to  know,  in
               where  a  single  stage  weighted
                                                                   advance,  and  regulate  the  number of
                sample was used.
                                                                   enumerators  required.  Similarly,  the
                                                                   selection . of  two  mouzas  from  each
            c)  Rest  of the  country,  comprising
                                                                   patwar  circle  helped  in· equalizing  the
                entire  urban  areas  and  unsettled
                                                                   workload       per      enumerator         and
                rural  and  tribal  areas  including
                                                                   selecting     clusters     of  households
                Northern  Areas;  where  a  single
                                                                   facilitated the enumeration work.
                stage     systematic  sampl0  was
                used.
                                                                          This  sampling  plan  called  for
                                                                   preparation       of    elaborate      franles
                   In  rural  settled  areas,  sample              involving  great  deal  of  effort  and
            size  was  determined  at · sub-division
                                                                   expense.       The      frames      prepared
            level  and  in  rural  unsettled  areas  at            were:-
            the  district  /  agency  /  FR  levels.  In
            urban  areas,  the  sample  size  varied               i)  National  Certainty Holdings (NCH)
            according  to  the  size  of  populace  in                list;  comprising  of  all  government
           · an  urban  unit.      In  the  three  stage              and  private  farms  of  100  acres  or
            sample,  patwar  circles  in  the  first                  more      scattered       all   over  the
            stage  and  mouzas  in  the  second                       country.
            stage  were  selected  with  probability
            proportional       to      size,     whereas           ii)  Mouza  list;  containing  only  rural
            households  in  the  form  of  roughly                     mouzas arranged by patwar circles
            equal  clusters  were  seiected  in  the                  and      kanungo       circles    showing
            third stage with equal probability.                        mouza-wise  total  area,  cultivated
                                                                       area  and  number  of · households.

                                                             (xx,)
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