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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:59:10                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              125/Jim Wells                                             VRSN:      W
                                                        125-902/Ben Bolt-Palito Blanco IS
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                1,058,015        0.9538             1,109,263               6               64         .003807088
      2           A                1,051,603        0.9315             1,128,935               7               29         .002756658
      3           A                1,076,080        0.9202             1,169,398               5               17         .004165846
      4           A                  960,951        1.0161               945,725               4                8         .001462088
      5           D3              25,443,183        0.9390            27,096,042              19            1,862         .022196949
      6           G1               4,977,375        0.9991             4,981,859               7               28         .000776297
  RANDOM TOTALS:                  34,567,207                          36,431,222              48            2,008
  CATG J  EXCEPTION VALUES:        2,266,773                           2,266,862
  CATG D1 EXCEPTION VALUES:        9,044,085                           9,245,635
 TOTAL TEST VALUES (4):           45,878,065                          47,943,719
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:            2,397,186
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             45,546,533 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              45,878,065 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             50,340,905 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              49,912,558 (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