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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:24:34                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              240/Webb                                                  VRSN:      W
                                                        240-902/Mirando City ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                  821,125        0.9941               825,998                7               62
           2           A                  839,577        0.9472               886,378                6               30
           3           A                  835,358        1.0420               801,687                5               18
           4           A                  811,231        1.0759               754,002                4                9
           5           G1              56,082,605        1.0276            54,576,299               18               93
  RANDOM TOTALS:                       59,389,896                          57,844,364               40              212
  CATG J  EXCEPTION VALUES:             1,201,210                           1,216,151
  CATG D1 EXCEPTION VALUES:             2,453,480                           3,548,195
 TOTAL TEST VALUES (4):                63,044,586                          62,608,710
 MARGIN OF ERROR PERCENT:               5.5300357
 MARGIN OF ERROR VALUE:                 3,462,284
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  59,146,426 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   63,044,586 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  66,070,994 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   71,383,355 (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