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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:52:13                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              005/Archer                                                VRSN:      W
                                                        005-904/Windthorst ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                3,919,869        0.9491             4,130,091                8               89
           2           A                3,999,592        0.9866             4,053,914                9               55
           3           A                3,861,473        0.9829             3,928,653                8               39
           4           A                3,898,269        0.9863             3,952,417                8               22
           5           D3              18,358,000        0.9453            19,420,290               16              899
  RANDOM TOTALS:                       34,037,203                          35,485,365               49            1,104
  CATG D1 EXCEPTION VALUES:             5,460,530                           5,432,245
 TOTAL TEST VALUES (4):                39,497,733                          40,917,610
 MARGIN OF ERROR PERCENT:               5.0000012
 MARGIN OF ERROR VALUE:                 2,045,881
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  38,871,729 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   39,497,733 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  42,963,491 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   42,224,653 (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