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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:02                                       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        0.9016           164,226,507              14            2,391         .026801609
      2           A              148,053,878        0.9494           155,944,679              17            1,441         .012401703
      3           A              148,231,116        0.8955           165,528,884              13            1,040         .008595097
      4           A              147,670,539        0.9546           154,693,630              16              635         .012790581
      5           D3             407,326,940        0.9781           416,447,132              20           10,804         .013952284
      6           F1              38,532,743        0.8720            44,188,925               7              367         .004488636
      7           F1              38,625,970        0.9652            40,018,618               8              124         .016131875
      8           F1              39,754,046        0.8602            46,214,887               6               41         .060797244
      9           F1              36,890,158        0.9765            37,777,940               4               10         .055510234
     10           G1              31,890,664        1.0312            30,925,780               6               41         .001001835
     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                       1,420,672,811             143           17,545
  CATG J  EXCEPTION VALUES:       25,767,322                          24,945,548
  CATG D1 EXCEPTION VALUES:       23,663,478                          23,357,060
  CATG G1 EXCEPTION VALUES:       21,461,440                          21,542,785
 TOTAL TEST VALUES (4):        1,422,289,462                       1,490,518,204
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           74,525,910
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,415,992,294 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,422,289,462 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,565,044,114 (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