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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:26:15                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              166/Milam                                                 VRSN:      W
                                                        166-902/Gause ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,507,979        0.8755             1,722,420               8               91         .065506687
      2           A                1,500,917        0.9131             1,643,760               6               50         .020088554
      3           A                1,497,202        1.0315             1,451,480               6               32         .011294220
      4           A                1,495,544        1.0730             1,393,797               5               14         .038999220
      5           D3              18,189,725        1.0374            17,533,955              21            1,007         .034161597
      6           G1              22,760,293        0.9912            22,962,362              13               49         .009146050
  RANDOM TOTALS:                  46,951,660                          46,707,774              59            1,243
  CATG J  EXCEPTION VALUES:        2,951,735                           2,995,121
  CATG D1 EXCEPTION VALUES:        3,281,320                           3,349,401
 TOTAL TEST VALUES (4):           53,184,715                          53,052,296
 MARGIN OF ERROR PERCENT:          5.0000004
 MARGIN OF ERROR VALUE:            2,652,615
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             50,399,681 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              53,184,715 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             55,704,911 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              54,270,520 (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