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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:52:11                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              005/Archer                                                VRSN:      W
                                                        005-903/Megargel ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                  649,836        0.9779               664,522                9               57
           2           A                  639,774        0.9643               663,460                8               31
           3           A                  676,758        0.9922               682,078                7               16
           4           A                  598,779        1.0352               578,419                5                7
           5           D3               2,004,710        0.8294             2,417,061               23              740
           6           G1               3,198,340        1.0224             3,128,267               16               95
  RANDOM TOTALS:                        7,768,197                           8,133,807               68              946
  CATG J  EXCEPTION VALUES:             1,631,830                           1,297,946
  CATG D1 EXCEPTION VALUES:             8,224,950                           8,276,749
 TOTAL TEST VALUES (4):                17,624,977                          17,708,502
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                   885,425
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  16,823,077 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   17,624,977 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  18,593,927 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   18,885,815 (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