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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:01:08                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              072/Erath                                                 VRSN:      P
                                                        072-903/Stephenville ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               86,198,183        0.9890            87,156,909               63            1,824
           2           A               86,255,359        0.9832            87,729,210               47            1,076
           3           A               86,183,269        0.9669            89,133,591               35              814
           4           A               86,148,920        0.9703            88,785,860               17              478
           5           D3             148,773,320        1.0212           145,684,802               34            6,251
           6           F1              37,813,626        1.0858            34,825,590               17              334
           7           F1              38,011,366        0.7531            50,473,199               16              113
           8           F1              39,204,841        0.8500            46,123,342               11               42
           9           F1              36,115,618        1.0384            34,780,064                5                7
          10           L1              17,235,990        0.9884            17,438,274                8              401
          11           L1              17,297,545        1.0751            16,089,243                6              102
          12           L1              17,893,264        1.0184            17,569,976                6               30
          13           L1              16,319,758        1.1291            14,453,776                2                6
  RANDOM TOTALS:                      713,451,059                         730,243,836              267           11,478
  CATG D1 EXCEPTION VALUES:            14,671,840                          12,235,149
 TOTAL TEST VALUES (4):               728,122,899                         742,478,985
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                37,123,949
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 705,355,036 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  728,122,899 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 779,602,934 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  796,981,386 (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