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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:48                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              097/Hamilton                                              VRSN:      W
                                                        018-908/Cranfills Gap ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           D3               8,249,491        1.1417             7,225,621              20              465         .087527990
  RANDOM TOTALS:                   8,249,491                           7,225,621              20              465
  CATG D1 EXCEPTION VALUES:        2,764,100                           2,848,724
 TOTAL TEST VALUES (4):           11,013,591                          10,074,345
 MARGIN OF ERROR PERCENT:          9.7009979
 MARGIN OF ERROR VALUE:              977,312
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:              9,097,033 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              11,013,591 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             11,051,657 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              10,529,661 (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