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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:52:27                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              008/Austin                                                VRSN:      W
                                                        008-901/Bellville ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              205,086,459        0.9440           217,252,605               64            2,676
           2           D3             238,451,884        0.9574           249,061,922               31            9,279
           3           F1              31,423,236        0.9348            33,614,929               10              356
  RANDOM TOTALS:                      474,961,579                         499,929,456              105           12,311
  CATG J  EXCEPTION VALUES:            19,233,940                          21,913,386
  CATG D1 EXCEPTION VALUES:            25,566,910                          18,677,274
 TOTAL TEST VALUES (4):               519,762,429                         540,520,116
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                27,026,006
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 513,494,110 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  519,762,429 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 567,546,122 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  531,861,094 (SEE ISD SUMMARY WORKSHEET)

 SOURCES:
 (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430
 (2) NUMBER OF PARCELS SAMPLED BY STAFF
 (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT
 (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES
 (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES