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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:41:20                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              239/Washington                                            VRSN:      W
                                                        239-901/Brenham ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              148,066,619        0.9007           164,390,606              14            2,391         .027364400
      2           A              148,053,878        0.9425           157,086,343              18            1,441         .012550674
      3           A              148,231,116        0.8931           165,973,705              13            1,040         .008984649
      4           A              147,670,539        0.9546           154,693,630              16              635         .012790581
      5           D3             407,326,940        0.8768           464,560,835              24           10,804         .176732641
      6           F1              38,532,743        0.8720            44,188,925               7              367         .004488636
      7           F1              38,625,970        0.9512            40,607,622               8              124         .017878684
      8           F1              39,754,046        0.8226            48,327,311               6               41         .036820553
      9           F1              36,890,158        0.9765            37,777,940               4               10         .055510234
     10           G1              31,890,664        0.9488            33,611,577               6               41         .031158825
     11           G1              31,678,501        1.0225            30,981,419               5               14         .007042648
     12           G1              37,883,360        1.0127            37,408,275               4                7         .000765202
     13           L1              24,273,166        0.9888            24,548,105               6              482         .020775998
     14           L1              24,194,139        1.1652            20,763,937               7              100         .077305235
     15           L1              25,086,570        0.9981            25,134,325               6               36         .050790548
     16           L1              23,238,813        0.8983            25,869,768               4               12         .001263762
  RANDOM TOTALS:               1,351,397,222                       1,475,924,323             148           17,545
  CATG J  EXCEPTION VALUES:       21,837,382                          24,178,755
  CATG D1 EXCEPTION VALUES:       23,663,478                          23,357,060
  CATG G1 EXCEPTION VALUES:       21,461,440                          21,542,785
 TOTAL TEST VALUES (4):        1,418,359,522                       1,545,002,923
 MARGIN OF ERROR PERCENT:          5.2897323
 MARGIN OF ERROR VALUE:           81,726,518
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:           1,418,359,522 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:          1,463,276,405 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:          1,626,729,441 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,537,813,415 (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