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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:55:43                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              014/Bell                                                  VRSN:      W
                                                        014-902/Bartlett ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,714,565        0.9510             8,112,056               8              254         .011550477
      2           A                7,740,693        0.9963             7,769,440               8              145         .010175248
      3           A                7,729,033        0.9773             7,908,557               8               99         .001876649
      4           A                7,650,892        0.9642             7,934,964               8               65         .005183499
      5           D3              20,130,797        0.9401            21,413,463              22            1,428         .036367915
      6           F1                 986,382        0.8435             1,169,392               8               43         .016774157
      7           F1               1,015,981        0.9006             1,128,116               5               20         .008208932
      8           F1               1,155,384        0.9382             1,231,490               4                6         .002546338
  RANDOM TOTALS:                  54,123,727                          56,667,478              71            2,060
  CATG J  EXCEPTION VALUES:        4,982,864                           5,337,240
  CATG D1 EXCEPTION VALUES:       10,060,479                           9,588,824
  CATG F1 EXCEPTION VALUES:          783,353                             811,489
 TOTAL TEST VALUES (4):           69,950,423                          72,405,031
 MARGIN OF ERROR PERCENT:          5.0000006
 MARGIN OF ERROR VALUE:            3,620,252
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             68,784,779 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              69,950,423 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             76,025,283 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              64,389,905 (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