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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:59:25                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              061/Denton                                                VRSN:      P
                                                        061-907/Aubrey ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               39,497,130        0.9801            40,299,082               12              449
           2           A               39,523,119        1.0045            39,346,062               29              311
           3           A               39,679,920        1.0183            38,966,827               29              239
           4           A               39,428,906        1.0154            38,830,910                9              148
           5           D3             100,630,880        1.0132            99,319,858               19            1,768
  RANDOM TOTALS:                      258,759,955                         256,762,739               98            2,915
  CATG D1 EXCEPTION VALUES:             2,416,651                           2,074,643
 TOTAL TEST VALUES (4):               261,176,606                         258,837,382
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                12,941,869
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 245,895,513 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  261,176,606 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 271,779,251 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  284,462,728 (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