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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:03:05                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-906/Texas City ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              138,386,822        0.9324           148,420,015               18            2,918
           2           A              138,323,334        1.0364           133,465,201               11            1,945
           3           A              138,271,034        0.9649           143,300,895               15            1,401
           4           A              138,353,161        0.9938           139,216,302               17              854
           5           F1              17,015,608        0.9562            17,795,030                9              261
           6           F1              17,102,744        0.8959            19,090,015                8               99
           7           F1              17,354,356        0.9163            18,939,601                8               39
           8           F1              16,600,738        0.8830            18,800,383                6               10
           9           L1              18,131,235        0.9816            18,471,103                7              267
          10           L1              18,016,871        1.0432            17,270,774                7               52
          11           L1              19,711,083        0.9981            19,748,605                5               17
  RANDOM TOTALS:                      677,266,986                         694,517,924              111            7,863
  CATG J  EXCEPTION VALUES:            25,568,391                          24,458,909
  CATG D1 EXCEPTION VALUES:                27,640                              24,558
  CATG L1 EXCEPTION VALUES:            13,786,285                          14,143,636
 TOTAL TEST VALUES (4):               716,649,302                         733,145,027
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                36,657,251
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 696,487,776 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  716,649,302 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 769,802,278 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                2,883,751,135 (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