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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:23                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              230/Upshur                                                VRSN:      W
                                                        230-901/Big Sandy ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                8,898,380        0.9337             9,530,235               15              300
           2           A                8,915,056        0.9304             9,581,960               16              168
           3           A                8,904,613        0.9355             9,518,560               18              116
           4           A                8,819,903        0.8940             9,865,663               17               72
           5           D3              37,179,984        0.9404            39,536,350               20            2,344
           6           F1               1,756,346        0.8070             2,176,389                6               40
           7           F1               1,759,418        0.8109             2,169,710                5               18
           8           F1               1,908,283        0.8490             2,247,683                5                8
           9           L1               2,127,929        0.9736             2,185,630               11               68
          10           L1               2,233,337        0.9001             2,481,210                9               12
          11           L1               2,788,546        0.9808             2,843,134                4                5
  RANDOM TOTALS:                       85,291,795                          92,136,524              126            3,151
  CATG J  EXCEPTION VALUES:            11,079,578                          10,999,328
  CATG D1 EXCEPTION VALUES:             5,600,185                           4,577,940
  CATG F1 EXCEPTION VALUES:             4,361,984                           5,227,590
  CATG G1 EXCEPTION VALUES:             8,406,339                           8,326,300
  CATG L1 EXCEPTION VALUES:               950,929                             956,532
 TOTAL TEST VALUES (4):               115,690,810                         122,224,214
 MARGIN OF ERROR PERCENT:               5.0000002
 MARGIN OF ERROR VALUE:                 6,111,211
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                  115,690,810 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                 116,113,003 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                 128,335,425 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  107,534,738 (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