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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:22:52                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              229/Tyler                                                 VRSN:      P
                                                        229-904/Warren ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               26,388,723        0.9225            28,605,662               16              839
           2           A               26,382,861        0.9135            28,881,074               15              416
           3           A               26,319,523        1.0004            26,308,999               16              265
           4           A               26,359,316        0.9761            27,004,729               15              157
           5           D3              30,027,789        0.9764            30,753,573               22            4,465
           6           G1              15,420,627        0.8276            18,632,947               16               85
  RANDOM TOTALS:                      150,898,839                         160,186,984              100            6,227
  CATG D1 EXCEPTION VALUES:            34,251,434                          31,974,980
  CATG G1 EXCEPTION VALUES:             5,721,263                           5,661,229
 TOTAL TEST VALUES (4):               190,871,536                         197,823,193
 MARGIN OF ERROR PERCENT:               5.0000002
 MARGIN OF ERROR VALUE:                 9,891,160
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 187,932,033 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  190,871,536 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 207,714,353 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  177,028,303 (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