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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:56:59                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              040/Cochran                                               VRSN:      W
                                                        040-901/Morton ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                3,849,324        0.9335             4,123,539               16              355
           2           A                3,835,131        0.9562             4,010,804               15              158
           3           A                3,823,080        1.0415             3,670,744               15               92
           4           A                3,841,851        1.1129             3,452,108               15               55
           5           D3               5,239,450        0.9572             5,473,725               20            1,112
           6           F1                 773,441        0.8583               901,131                7               62
           7           F1                 760,232        0.9660               786,990                6               23
           8           F1                 842,355        0.9886               852,069                5               11
           9           F1                 686,171        0.9782               701,463                3                5
          10           G1               1,828,733        1.0387             1,760,598               13               27
          11           L1                 847,019        0.9835               861,229                6               45
          12           L1                 907,419        1.0032               904,525                5               10
          13           L1                 920,945        0.9814               938,399                2                5
          14           L1               1,612,199        0.9650             1,670,673                2                3
  RANDOM TOTALS:                       29,767,350                          30,107,997              130            1,963
  CATG J  EXCEPTION VALUES:             1,331,400                           1,228,819
  CATG D1 EXCEPTION VALUES:            20,002,620                          20,342,370
  CATG G1 EXCEPTION VALUES:             2,908,787                           2,868,991
 TOTAL TEST VALUES (4):                54,010,157                          54,548,177
 MARGIN OF ERROR PERCENT:               5.0000003
 MARGIN OF ERROR VALUE:                 2,727,409
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  51,820,768 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   54,010,157 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  57,275,586 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   52,808,290 (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