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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:57:49                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              049/Cooke                                                 VRSN:      P
                                                        049-905/Callisburg ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               70,286,311        1.0063            69,846,279               29              730
           2           A               70,182,743        1.0005            70,147,669               37              382
           3           A               70,097,598        0.9873            70,999,289               17              265
           4           A               70,219,089        0.9798            71,666,758               15              167
           5           D3              88,428,519        1.0926            80,934,028               27            3,605
  RANDOM TOTALS:                      369,214,260                         363,594,023              125            5,149
  CATG D1 EXCEPTION VALUES:             5,504,762                           4,940,347
 TOTAL TEST VALUES (4):               374,719,022                         368,534,370
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                18,426,719
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 350,107,651 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  374,719,022 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 386,961,089 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  348,899,259 (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