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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:49                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-908/Mansfield ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              987,721,530        1.0181           970,161,605               51            8,243
           2           A              986,021,987        1.0204           966,309,278               46            6,288
           3           A              985,340,331        1.0108           974,812,358               49            4,977
           4           A              985,441,468        1.0118           973,948,871               49            3,141
           5           F1             125,108,363        0.9338           133,977,686                7              354
           6           F1             126,035,136        0.8759           143,892,152                7              118
           7           F1             127,843,889        0.7920           161,419,052                6               49
           8           F1             120,797,606        0.9807           123,174,881                5               15
  RANDOM TOTALS:                    4,444,310,310                       4,447,695,883              220           23,185
  CATG D1 EXCEPTION VALUES:             1,890,692                           2,071,976
 TOTAL TEST VALUES (4):             4,446,201,002                       4,449,767,859
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               222,488,393
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               4,227,279,466 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                4,446,201,002 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               4,672,256,252 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                5,400,838,963 (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