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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:03:01                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-903/High Island ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               13,879,708        0.9756            14,226,843               15              444
           2           A               13,906,218        0.9587            14,505,286               16              248
           3           A               13,940,036        0.9168            15,205,100               15              147
           4           A               13,831,349        0.9998            13,834,116               15               72
           5           C                1,799,443        0.9551             1,884,036                8              657
           6           C                1,805,084        0.9704             1,860,144                7              307
           7           C                1,815,330        0.9670             1,877,280                7              142
           8           C                1,781,271        0.9648             1,846,259                7               50
           9           D3               3,513,470        0.9703             3,621,014               10              428
          10           G1               1,577,216        1.0054             1,568,745                8               25
  RANDOM TOTALS:                       67,849,125                          70,428,823              108            2,520
  CATG J  EXCEPTION VALUES:             2,605,773                           2,634,368
  CATG D1 EXCEPTION VALUES:               418,810                             372,164
  CATG G1 EXCEPTION VALUES:             4,513,199                           4,621,352
 TOTAL TEST VALUES (4):                75,386,907                          78,056,707
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 3,902,835
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  74,153,872 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   75,386,907 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  81,959,542 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   77,101,680 (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