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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:52:27                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              013/Bee                                                   VRSN:      P
                                                        013-905/Skidmore-Tynan ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                5,041,120        0.9066             5,560,468               10              314
           2           A                5,029,377        0.9487             5,301,336                9              139
           3           A                5,092,590        1.0272             4,957,739               10               83
           4           A                4,968,740        1.0000             4,968,740                7               51
           5           D3              18,148,455        1.0408            17,437,024               19            2,160
           6           G1              11,632,990        0.9839            11,823,346               14               59
  RANDOM TOTALS:                       49,913,272                          50,048,653               69            2,806
  CATG J  EXCEPTION VALUES:             7,224,218                           7,556,889
  CATG D1 EXCEPTION VALUES:            19,433,786                          19,532,582
  CATG G1 EXCEPTION VALUES:             4,519,670                           4,653,978
 TOTAL TEST VALUES (4):                81,090,946                          81,792,102
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 4,089,605
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  77,702,497 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   81,090,946 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  85,881,707 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   83,148,158 (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