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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:02:59                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-902/Galveston ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              581,615,462        0.9796           593,727,503               50            9,732
           2           A              581,360,711        0.9531           609,968,221               50            5,229
           3           A              581,517,083        0.9430           616,667,108               50            3,072
           4           A              581,447,363        0.9553           608,654,206               50            1,578
           5           B               52,616,566        0.9685            54,327,895               17              650
           6           B               52,701,765        0.9811            53,717,017                7              168
           7           B               56,946,482        1.0156            56,071,763                6               19
           8           B               47,864,150        1.0658            44,909,129                4                8
           9           F1              99,916,951        0.9413           106,147,829               15              724
          10           F1             100,690,887        0.9772           103,040,204               13              217
          11           F1             100,563,981        0.8769           114,681,242                8               69
          12           F1              98,621,896        0.9746           101,192,177                8               14
  RANDOM TOTALS:                    2,935,863,297                       3,063,104,294              278           21,480
  CATG D1 EXCEPTION VALUES:               437,700                             389,773
 TOTAL TEST VALUES (4):             2,936,300,997                       3,063,494,067
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               153,174,703
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               2,910,319,364 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                2,936,300,997 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               3,216,668,770 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                3,184,684,394 (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