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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:58:05                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              048/Concho                                                VRSN:      W
                                                        048-901/Eden CISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                3,650,689        1.1068             3,298,418               11              238
           2           A                3,573,680        0.9121             3,918,079               11              123
           3           A                3,623,304        0.9840             3,682,220               12               83
           4           A                3,607,906        1.0279             3,509,978                9               46
           5           D3              15,033,650        0.8721            17,238,447               18            2,687
           6           F1               1,308,240        1.0241             1,277,453                9               56
           7           F1               1,392,816        0.9776             1,424,730                7               18
           8           G1              13,245,378        0.9823            13,484,046               15               92
  RANDOM TOTALS:                       45,435,663                          47,833,371               92            3,343
  CATG J  EXCEPTION VALUES:             2,881,980                           2,831,559
  CATG D1 EXCEPTION VALUES:            25,117,280                          23,107,050
  CATG F1 EXCEPTION VALUES:             2,349,050                           2,431,637
  CATG G1 EXCEPTION VALUES:             3,926,312                           3,950,896
 TOTAL TEST VALUES (4):                79,710,285                          80,154,513
 MARGIN OF ERROR PERCENT:               5.4444832
 MARGIN OF ERROR VALUE:                 4,363,999
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  75,790,514 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   79,710,285 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  84,518,512 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  103,732,414 (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