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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:24:05                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              239/Washington                                            VRSN:      P
                                                        239-903/Burton ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                8,115,180        0.8981             9,035,943                7              270
           2           A                8,178,492        1.1424             7,159,044                9              137
           3           A                8,156,145        0.9615             8,482,730               12               90
           4           A                8,071,018        1.0279             7,851,949                7               50
           5           D3             105,171,450        0.9919           106,030,295               26            3,202
           6           G1              63,423,530        1.0219            62,064,321               20              123
  RANDOM TOTALS:                      201,115,815                         200,624,282               81            3,872
  CATG J  EXCEPTION VALUES:             6,627,743                           6,807,084
  CATG D1 EXCEPTION VALUES:             7,384,870                           6,968,421
 TOTAL TEST VALUES (4):               215,128,428                         214,399,787
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                10,719,989
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 203,679,798 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  215,128,428 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 225,119,776 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  220,872,049 (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