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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:36                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              030/Callahan                                              VRSN:      W
                                                        030-902/Clyde ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               18,174,082        0.9021            20,146,416                9              596
           2           A               18,136,239        0.9115            19,897,135                6              331
           3           A               18,174,134        0.9842            18,465,895                9              241
           4           A               18,158,984        0.9703            18,714,814                7              163
           5           D3              61,655,890        1.1122            55,435,974               26          201,474
           6           F1               2,832,318        1.0157             2,788,538               10               73
           7           F1               2,944,022        0.9302             3,164,934               11               29
           8           F1               2,782,600        0.9838             2,828,420                6               11
           9           L1               2,872,407        0.9905             2,899,957                8               92
          10           L1               3,290,701        0.9854             3,339,457                9               26
  RANDOM TOTALS:                      149,021,377                         147,681,540              101          203,036
  CATG J  EXCEPTION VALUES:             8,737,130                           8,635,478
  CATG D1 EXCEPTION VALUES:            10,629,390                          10,378,600
  CATG F1 EXCEPTION VALUES:             2,876,380                           3,021,079
  CATG L1 EXCEPTION VALUES:             5,535,180                           5,617,266
 TOTAL TEST VALUES (4):               176,799,457                         175,333,963
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 8,766,698
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 166,567,265 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  176,799,457 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 184,100,661 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  154,855,726 (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