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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:07:10                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              109/Hill                                                  VRSN:      P
                                                        109-903/Covington ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                2,833,710        1.0847             2,612,437                7               80
           2           A                2,903,573        1.2130             2,393,712                7               48
           3           A                2,779,735        1.2072             2,302,630                6               32
           4           A                2,863,510        1.1677             2,452,265                9               23
           5           D3              26,351,570        1.1793            22,345,095               22            1,062
  RANDOM TOTALS:                       37,732,098                          32,106,139               51            1,245
  CATG D1 EXCEPTION VALUES:             2,975,240                           2,607,808
 TOTAL TEST VALUES (4):                40,707,338                          34,713,947
 MARGIN OF ERROR PERCENT:               6.9646416
 MARGIN OF ERROR VALUE:                 2,417,702
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  32,296,245 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:                  37,131,649 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   40,707,338 (OUTSIDE CONFIDENCE INTERVAL)
 VALUE ASSIGNED (6):                   35,618,130 (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