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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:21:37                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-901/Arlington ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A            2,309,775,137        1.0110         2,284,644,052              101           25,391
           2           A            2,296,090,097        1.0183         2,254,826,767              100           19,032
           3           A            2,304,170,977        1.0228         2,252,806,978              100           14,391
           4           A            2,300,106,759        1.0124         2,271,934,768               99            8,789
           5           B              355,567,361        0.8061           441,095,845               24            2,385
           6           B              356,928,108        0.9474           376,744,889                7               85
           7           B              356,046,068        0.8657           411,281,123                6               47
           8           B              352,561,751        0.9445           373,278,720                8               20
           9           F1             944,967,066        0.8024         1,177,675,805               29            1,589
          10           F1             946,646,017        0.8651         1,094,261,955               17              464
          11           F1             945,738,836        0.9310         1,015,831,188                7              180
          12           F1             940,717,545        0.8822         1,066,331,382                7               66
          13           L1             554,919,918        1.0865           510,740,836                8            2,592
          14           L1             556,149,948        1.0503           529,515,327                5              371
          15           L1             559,847,645        1.0202           548,762,640                9              117
          16           L1             547,983,763        1.0975           499,301,834                7               30
  RANDOM TOTALS:                   16,628,216,996                      17,109,034,109              534           75,549
  CATG D1 EXCEPTION VALUES:               116,256                             149,798
 TOTAL TEST VALUES (4):            16,628,333,252                      17,109,183,907
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               855,459,195
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              16,253,724,712 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:               16,628,333,252 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:              17,964,643,102 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):               17,476,885,915 (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