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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:54:46                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              021/Brazos                                                VRSN:      W
                                                        021-901/College Station ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              464,984,440        0.9053           513,624,699               59            4,593
           2           A              464,642,649        0.9365           496,148,050               70            3,253
           3           A              464,642,986        0.9482           490,026,351               67            2,233
           4           A              464,790,427        0.9444           492,154,201               60            1,304
           5           B              138,693,614        0.9189           150,934,393               61            1,167
           6           B              139,296,841        1.0177           136,874,168               29              178
           7           B              145,617,703        0.9079           160,389,584                8               27
           8           B              130,237,697        0.9852           132,194,171                5                8
           9           F1             157,574,915        0.9984           157,827,439                8              276
          10           F1             157,880,272        1.0155           155,470,480                7               76
          11           F1             160,427,038        0.9542           168,127,267                6               34
          12           F1             151,670,464        0.9873           153,621,456                5               10
          13           L1              58,135,087        0.9024            64,422,747                9              704
          14           L1              58,437,264        0.9720            60,120,642                7              170
          15           L1              60,572,065        1.0409            58,192,012                7               47
          16           L1              55,419,401        0.9988            55,485,984                5               12
  RANDOM TOTALS:                    3,273,022,863                       3,445,613,644              413           14,092
  CATG D1 EXCEPTION VALUES:             2,382,530                           1,968,472
 TOTAL TEST VALUES (4):             3,275,405,393                       3,447,582,116
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:               172,379,106
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               3,275,203,010 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                3,275,405,393 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               3,619,961,222 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                3,535,418,654 (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