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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:35                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              230/Upshur                                                VRSN:      W
                                                        230-908/Union Grove ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                9,375,590        0.7993            11,729,751               13              242
           2           A                9,396,409        0.9395            10,001,500               13              143
           3           A                9,436,722        0.8682            10,869,295               12              101
           4           A                9,344,969        0.9830             9,506,581               14               53
           5           D3              23,243,132        0.8585            27,074,120               25            1,117
           6           G1              88,574,873        1.0216            86,702,107               20              143
  RANDOM TOTALS:                      149,371,695                         155,883,354               97            1,799
  CATG D1 EXCEPTION VALUES:             1,270,588                             838,308
 TOTAL TEST VALUES (4):               150,642,283                         156,721,662
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 7,836,083
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 148,885,579 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  150,642,283 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 164,557,745 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  145,501,853 (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