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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:22:45                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              226/Tom Green                                             VRSN:      W
                                                        226-906/Wall ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               18,451,413        0.9188            20,082,078               15              318
           2           A               18,446,367        0.8875            20,784,639               15              197
           3           A               18,582,093        0.9531            19,496,478               15              143
           4           A               18,291,783        0.9992            18,306,428               14               72
           5           D3              21,987,799        1.0507            20,926,810               21            2,282
  RANDOM TOTALS:                       95,759,455                          99,596,433               80            3,012
  CATG D1 EXCEPTION VALUES:            29,262,810                          26,346,583
 TOTAL TEST VALUES (4):               125,022,265                         125,943,016
 MARGIN OF ERROR PERCENT:               5.0000002
 MARGIN OF ERROR VALUE:                 6,297,151
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 119,645,865 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  125,022,265 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 132,240,167 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  137,522,898 (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