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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:51:47                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              001/Anderson                                              VRSN:      W
                                                        001-908/Westwood ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               24,908,449        0.9732            25,594,378               12              670
           2           A               24,925,592        0.9300            26,801,712               17              456
           3           A               24,911,892        0.9834            25,332,410               23              371
           4           A               24,822,635        0.9447            26,275,680               20              265
           5           D3              39,626,265        1.0328            38,367,801               19            2,668
           6           F1               4,236,553        0.8743             4,845,651                8               67
           7           F1               4,180,509        0.8764             4,770,092                6               23
           8           F1               8,216,710        0.9988             8,226,582                6               10
           9           L1               5,886,175        1.1969             4,917,850               10              115
          10           L1               5,751,445        1.0738             5,356,160                6               28
          11           L1               6,055,537        1.0112             5,988,466                6               12
  RANDOM TOTALS:                      173,521,762                         176,476,782              133            4,685
  CATG J  EXCEPTION VALUES:            10,716,270                          10,967,306
  CATG D1 EXCEPTION VALUES:             3,476,277                           2,975,561
  CATG L1 EXCEPTION VALUES:             4,185,520                           3,978,620
 TOTAL TEST VALUES (4):               191,899,829                         194,398,269
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 9,719,913
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 184,678,356 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  191,899,829 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 204,118,182 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  332,641,289 (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