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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:01:47                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              073/Falls                                                 VRSN:      W
                                                        073-904/Westphalia ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                  751,215        0.7567               992,751               14               34
           2           A                  785,137        0.8675               905,057               12               19
           3           A                  775,653        0.9470               819,063               10               12
           4           A                  745,079        1.1721               635,679                6                7
           5           D3               4,492,260        0.9094             4,939,806               20              453
  RANDOM TOTALS:                        7,549,344                           8,292,356               62              525
  CATG J  EXCEPTION VALUES:                52,760                             146,173
  CATG D1 EXCEPTION VALUES:             1,991,260                           2,101,748
 TOTAL TEST VALUES (4):                 9,593,364                          10,540,277
 MARGIN OF ERROR PERCENT:               5.0000014
 MARGIN OF ERROR VALUE:                   527,014
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                    9,593,364 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                  10,013,263 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                  11,067,291 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                    9,874,408 (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