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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:38                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              030/Callahan                                              VRSN:      W
                                                        030-903/Baird ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                5,672,065        0.9792             5,792,550                9              287
           2           A                5,720,131        0.9371             6,104,077               10              159
           3           A                5,707,751        0.9899             5,765,987                8              101
           4           A                5,629,372        0.9950             5,657,660                8               55
           5           D3              20,515,312        0.9705            21,138,910               26          235,065
           6           F1               1,293,962        0.9608             1,346,755               10               60
           7           F1               1,304,267        0.9463             1,378,281                9               20
           8           L1                 565,846        0.9758               579,879               11               52
           9           L1                 591,740        0.9296               636,553                5               16
          10           L1               4,147,188        0.9963             4,162,590                5                6
  RANDOM TOTALS:                       51,147,634                          52,563,242              101          235,821
  CATG J  EXCEPTION VALUES:            12,268,760                          12,488,795
  CATG D1 EXCEPTION VALUES:            10,975,280                          11,337,986
  CATG F1 EXCEPTION VALUES:             2,685,850                           2,537,786
  CATG L1 EXCEPTION VALUES:               528,780                             543,332
 TOTAL TEST VALUES (4):                77,606,304                          79,471,141
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 3,973,557
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  75,497,584 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   77,606,304 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  83,444,698 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   71,954,079 (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