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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:52:29                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              008/Austin                                                VRSN:      W
                                                        008-902/Sealy ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              234,574,735        0.9255           253,457,304               62            3,110
           2           D3              87,147,849        0.9920            87,850,654               19            5,740
           3           F1              50,817,855        0.9354            54,327,405               23              356
           4           L1              29,094,947        1.0648            27,324,330               14              555
  RANDOM TOTALS:                      401,635,386                         422,959,693              118            9,761
  CATG J  EXCEPTION VALUES:            25,247,705                          27,944,761
  CATG D1 EXCEPTION VALUES:            13,973,340                          10,693,026
 TOTAL TEST VALUES (4):               440,856,431                         461,597,480
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                23,079,874
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 438,517,606 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  440,856,431 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 484,677,354 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  528,733,585 (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