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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:02:57                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              084/Galveston                                             VRSN:      W
                                                        084-901/Dickinson ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              246,713,903        0.9985           247,084,530               33            4,016
           2           A              246,998,405        0.9490           260,272,292               56            2,352
           3           A              246,492,112        0.9879           249,511,197               44            1,736
           4           A              246,755,418        1.0144           243,252,581               40            1,090
           5           F1              50,626,550        0.9561            52,951,103               10              333
           6           F1              50,319,887        0.9646            52,166,584               10               86
           7           F1              52,128,487        0.9386            55,538,554                8               25
           8           F1              48,600,594        0.9984            48,678,480                5                6
           9           L1              27,455,638        1.0330            26,578,546                7              397
          10           L1              27,395,929        0.9814            27,915,151                7               77
          11           L1              54,587,487        0.9903            55,122,172                8               20
  RANDOM TOTALS:                    1,298,074,410                       1,319,071,190              228           10,138
  CATG J  EXCEPTION VALUES:            63,533,591                          61,876,621
  CATG D1 EXCEPTION VALUES:             1,073,290                           1,148,671
 TOTAL TEST VALUES (4):             1,362,681,291                       1,382,096,482
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                69,104,824
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,312,991,658 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,362,681,291 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,451,201,306 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,597,943,861 (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