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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:56:29                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              039/Clay                                                  VRSN:      P
                                                        039-905/Midway ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                1,132,525        1.0038             1,128,238                9               54
           2           A                1,152,784        1.0192             1,131,068                6               26
           3           A                1,214,813        0.9807             1,238,720                8               18
           4           A                1,072,039        0.9865             1,086,710                7               10
           5           D3              16,296,150        1.0239            15,915,763               41            2,227
           6           G1              13,000,680        0.9453            13,752,967               22              259
  RANDOM TOTALS:                       33,868,991                          34,253,466               93            2,594
  CATG J  EXCEPTION VALUES:             2,065,350                           1,849,784
  CATG D1 EXCEPTION VALUES:            13,113,060                          11,813,435
 TOTAL TEST VALUES (4):                49,047,401                          47,916,685
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                 2,395,834
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  45,520,851 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   49,047,401 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  50,312,519 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   49,154,567 (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