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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:56:21                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              034/Cass                                                  VRSN:      W
                                                        034-908/Marietta CISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                1,060,314        0.9352             1,133,783               13               54
           2           A                1,086,838        0.9041             1,202,121               11               32
           3           A                1,050,689        0.9257             1,135,021               10               24
           4           A                1,049,406        1.0950               958,362                8               14
           5           D3               6,349,380        1.0361             6,128,154               21              651
  RANDOM TOTALS:                       10,596,627                          10,557,441               63              775
  CATG J  EXCEPTION VALUES:             1,928,600                           1,272,837
  CATG D1 EXCEPTION VALUES:             1,626,350                           1,922,248
 TOTAL TEST VALUES (4):                14,151,577                          13,752,526
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                   687,626
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                  13,064,900 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                   14,151,577 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  14,440,152 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                   12,331,206 (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