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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:54:34                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              025/Brown                                                 VRSN:      P
                                                        025-901/Bangs ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               20,554,146        0.8824            23,293,456               25            1,010
           2           A               20,545,500        0.8534            24,074,877               23              510
           3           A               20,538,402        0.8545            24,035,579               20              310
           4           A               20,553,839        0.8861            23,195,846               22              161
           5           D3              38,383,700        0.9330            41,140,086               33            2,903
  RANDOM TOTALS:                      120,575,587                         135,739,844              123            4,894
  CATG J  EXCEPTION VALUES:             9,109,290                           9,384,337
  CATG D1 EXCEPTION VALUES:             8,213,040                           8,426,100
 TOTAL TEST VALUES (4):               137,897,917                         153,550,281
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 7,677,514
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                  137,897,917 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                 145,872,767 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                 161,227,795 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  140,790,791 (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