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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:02:23                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              082/Frio                                                  VRSN:      P
                                                        082-902/Dilley ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                5,816,546        1.0265             5,666,387                7              348
           2           A                5,812,693        0.9815             5,922,255                7              184
           3           A                5,789,005        0.9736             5,945,979                7              123
           4           A                5,788,381        0.9633             6,008,908                7               72
           5           D3              18,468,070        0.9947            18,566,472               11            1,931
           6           F1               1,881,091        0.9705             1,938,270                7               62
           7           F1               1,844,267        0.8816             2,091,954                6               22
           8           F1               2,069,699        0.9720             2,129,320                4                8
           9           G1               5,514,840        0.9621             5,732,086               16               62
  RANDOM TOTALS:                       52,984,592                          54,001,631               72            2,812
  CATG J  EXCEPTION VALUES:             8,430,582                           8,552,942
  CATG D1 EXCEPTION VALUES:            20,002,700                          19,395,185
  CATG F1 EXCEPTION VALUES:             1,525,820                           1,509,139
 TOTAL TEST VALUES (4):                82,943,694                          83,458,897
 MARGIN OF ERROR PERCENT:               5.0000002
 MARGIN OF ERROR VALUE:                 4,172,945
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  79,285,952 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   82,943,694 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  87,631,842 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   95,264,090 (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