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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:06:08                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              156/Martin                                                VRSN:      W
                                                        156-902/Stanton ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                6,595,245        0.9320             7,076,443              10              324         .085451201
      2           A                6,570,879        1.0215             6,432,579              10              178         .152496584
      3           A                6,576,652        0.9873             6,661,250               8              105         .052694753
      4           A                6,554,986        1.1646             5,628,530               9               56         .026487420
      5           D3              22,552,190        0.7345            30,704,139              24            2,642        1.301140675
      6           G1              38,043,150        0.9879            38,509,110              15              202         .023064287
      7           G1              38,074,640        0.9358            40,686,728              14               97         .035671076
      8           G1              39,315,400        1.0278            38,251,995              12               38         .021151048
      9           G1              36,382,700        1.0407            34,959,835               6               10         .009474766
  RANDOM TOTALS:                 200,665,842                         208,910,609             108            3,652
  CATG J  EXCEPTION VALUES:        9,941,162                           9,852,799
  CATG D1 EXCEPTION VALUES:        9,765,610                          12,933,422
 TOTAL TEST VALUES (4):          220,372,614                         231,696,830
 MARGIN OF ERROR PERCENT:          6.6338555
 MARGIN OF ERROR VALUE:           15,370,433
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            216,326,397 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             220,372,614 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            247,067,263 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             258,728,008 (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