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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:18:30                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              192/Reagan                                                VRSN:      P
                                                        192-901/Reagan Co ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                6,708,116        0.8947             7,497,615                9              389
           2           A                6,706,090        0.9270             7,234,186               11              190
           3           A                6,667,841        0.9616             6,934,111               10              123
           4           A                6,691,149        0.9539             7,014,518                7               84
           5           G1             447,415,260        1.0375           431,243,624               18            1,314
  RANDOM TOTALS:                      474,188,456                         459,924,054               55            2,100
  CATG J  EXCEPTION VALUES:             8,976,012                           9,104,419
  CATG D1 EXCEPTION VALUES:             7,308,577                          16,172,028
 TOTAL TEST VALUES (4):               490,473,045                         485,200,501
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                24,260,025
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 460,940,476 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  490,473,045 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 509,460,526 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  592,937,252 (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