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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:04:33                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              236/Walker                                                VRSN:      W
                                                        093-905/Richards ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                  778,510        0.9457               823,210                7               25
           2           A                  718,421        0.9969               720,655                6               15
           3           A                  791,451        0.9492               833,808                5               12
           4           A                  660,598        0.9553               691,508                5                6
           5           D3              11,760,220        0.9882            11,900,648               20           18,520
  RANDOM TOTALS:                       14,709,200                          14,969,829               43           18,578
  CATG D1 EXCEPTION VALUES:             2,540,470                           2,416,381
 TOTAL TEST VALUES (4):                17,249,670                          17,386,210
 MARGIN OF ERROR PERCENT:               7.9620170
 MARGIN OF ERROR VALUE:                 1,384,293
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  16,001,917 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   17,249,670 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  18,770,503 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   14,948,280 (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