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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:12:08                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              145/Leon                                                  VRSN:      P
                                                        145-901/Buffalo ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                6,669,739        0.7782             8,570,726               14              282
           2           A                6,698,159        0.8458             7,919,318               16              159
           3           A                6,630,241        0.9411             7,045,203               16              110
           4           A                6,657,602        1.0741             6,198,307               13               70
           5           D3              47,149,752        0.9519            49,532,253               20            3,322
           6           F1               3,581,430        0.9903             3,616,510                7               71
           7           F1               3,630,570        0.9260             3,920,702                6               27
           8           F1               3,971,941        0.8963             4,431,486                5               10
           9           G1              23,256,580        1.0735            21,664,257               12              111
  RANDOM TOTALS:                      108,246,014                         112,898,762              109            4,162
  CATG J  EXCEPTION VALUES:             9,526,511                          10,033,124
  CATG D1 EXCEPTION VALUES:             5,457,766                           5,269,181
  CATG F1 EXCEPTION VALUES:             2,252,838                           2,346,539
 TOTAL TEST VALUES (4):               125,483,129                         130,547,606
 MARGIN OF ERROR PERCENT:               5.6381363
 MARGIN OF ERROR VALUE:                 7,360,452
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 123,187,154 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  125,483,129 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 137,908,058 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  174,375,599 (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