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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:43                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-905/Fort Worth ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A            2,583,042,001        0.9977         2,588,996,693               98           46,324
           2           A            2,580,044,352        1.0208         2,527,472,915               99           25,771
           3           A            2,580,113,449        1.0242         2,519,150,019               98           15,850
           4           A            2,579,637,304        0.9582         2,692,170,010              100            6,397
           5           B              310,718,726        0.9200           337,737,746               28            3,236
           6           B              311,906,435        1.0213           305,401,385                8              157
           7           B              311,248,924        0.9180           339,051,115                7               60
           8           B              308,386,851        0.8977           343,529,967                9               23
           9           C               72,687,029        0.8874            81,910,107               11            7,968
          10           C               69,613,667        0.8818            78,944,961               12            1,370
          11           C               71,375,020        1.0284            69,403,948                7              460
          12           C               70,885,358        1.0192            69,549,998                7              113
          13           F1           1,017,576,352        0.8067         1,261,406,163               34            3,794
          14           F1           1,018,293,331        0.7745         1,314,775,121               21              822
          15           F1           1,017,631,589        0.8287         1,227,985,506                6              217
          16           F1           1,015,944,439        0.9449         1,075,187,257                7               50
          17           L1             586,863,958        1.0559           555,795,017                7            3,265
          18           L1             587,854,593        0.9747           603,113,361                8              475
          19           L1             593,251,573        1.0265           577,936,262                7              127
          20           L1             577,634,686        1.0070           573,619,351                7               24
  RANDOM TOTALS:                   18,264,709,637                      19,143,136,902              581          116,503
  CATG D1 EXCEPTION VALUES:             1,485,435                           1,358,913
 TOTAL TEST VALUES (4):            18,266,195,072                      19,144,495,815
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               957,224,791
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              18,187,271,024 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               18,266,195,072 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:              20,101,720,606 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):               17,817,707,417 (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