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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:58:21                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              055/Culberson                                             VRSN:      P
                                                        055-901/Culberson-Allamore ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                4,237,824        1.0129             4,183,852               12              302
           2           A                4,260,491        0.9973             4,272,025               12              165
           3           A                4,240,921        0.8196             5,174,379               11              112
           4           A                4,212,365        1.0518             4,004,911               11               67
           5           C                2,465,238        1.0153             2,428,088                9            1,531
           6           C                2,718,119        0.8281             3,282,356               10              869
           7           C                2,006,128        0.9712             2,065,618                8              330
           8           C                2,303,285        1.0266             2,243,605                8              101
           9           D3               6,683,620        0.9682             6,903,140               20            8,113
          10           F1               4,357,176        0.9688             4,497,498               14               88
          11           F1               4,382,569        0.9129             4,800,711                8               17
          12           F1               4,824,621        1.0001             4,824,139                5                6
          13           G1              10,961,420        1.0940            10,019,580               13               53
  RANDOM TOTALS:                       57,653,777                          58,699,902              141           11,754
  CATG J  EXCEPTION VALUES:            41,822,240                          47,992,854
  CATG D1 EXCEPTION VALUES:            18,944,140                          25,493,009
  CATG F1 EXCEPTION VALUES:             4,697,600                           4,577,855
 TOTAL TEST VALUES (4):               123,117,757                         136,763,620
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 6,838,181
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                  123,117,757 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:                 129,925,439 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                 143,601,801 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  210,944,060 (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