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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:51:37                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              004/Aransas                                               VRSN:      P
                                                        004-901/Aransas Co ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              294,643,575        1.0085           292,160,213               30            3,974
           2           A              295,052,134        0.9860           299,241,515               14            1,951
           3           A              294,471,786        1.0116           291,095,083               12            1,118
           4           A              294,543,702        0.9527           309,167,316                8              552
           5           C               29,732,489        0.9878            30,099,705                7            3,134
           6           C               29,684,140        0.9777            30,361,195               13            1,069
           7           C               29,770,005        0.9734            30,583,527                7              434
           8           C               29,616,675        0.9532            31,070,788                7              132
           9           F1              38,796,528        0.9845            39,407,342                8              336
          10           F1              39,231,976        0.9461            41,467,050                7              136
          11           F1              39,444,570        0.9886            39,899,423                7               58
          12           F1              37,913,478        0.9452            40,111,593                5               18
  RANDOM TOTALS:                    1,452,901,058                       1,474,664,750              125           12,912
  CATG D1 EXCEPTION VALUES:             5,803,590                           5,820,138
 TOTAL TEST VALUES (4):             1,458,704,648                       1,480,484,888
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                74,024,244
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,406,460,644 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,458,704,648 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,554,509,132 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,445,377,750 (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