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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:37                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              231/Upton                                                 VRSN:      W
                                                        231-901/McCamey ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                4,240,093        0.9701             4,370,779                9              366
           2           A                4,248,341        0.9363             4,537,372                9              192
           3           A                4,259,948        1.0733             3,969,019               11              111
           4           A                4,217,357        1.0725             3,932,268                7               58
           5           G1             568,188,270        1.0170           558,690,531               17              271
  RANDOM TOTALS:                      585,154,009                         575,499,969               53              998
  CATG D1 EXCEPTION VALUES:               776,190                           1,274,923
 TOTAL TEST VALUES (4):               585,930,199                         576,774,892
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                28,838,745
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 547,936,147 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  585,930,199 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 605,613,637 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  825,533,020 (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