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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:25:37                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              249/Wise                                                  VRSN:      P
                                                        249-902/Boyd ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               13,926,627        1.0819            12,872,379               11              314
           2           A               13,910,205        0.9246            15,044,565                7              192
           3           A               13,939,039        0.9703            14,365,700                9              141
           4           A               13,869,164        0.9832            14,106,147                7               84
           5           D3              81,296,900        0.9731            83,544,240               21            2,569
           6           F1               4,256,227        0.9903             4,297,917                7               65
           7           F1               4,395,372        0.9270             4,741,502                8               29
           8           F1               4,424,685        0.9488             4,663,454                5               14
           9           G1             169,105,310        1.0160           166,442,234               20              415
  RANDOM TOTALS:                      319,123,529                         320,078,138               95            3,823
  CATG D1 EXCEPTION VALUES:             2,414,892                           2,366,049
  CATG F1 EXCEPTION VALUES:             3,696,000                           3,583,233
 TOTAL TEST VALUES (4):               325,234,421                         326,027,420
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                16,301,371
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 309,726,049 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  325,234,421 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 342,328,791 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  340,510,646 (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