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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:38:12                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              220/Tarrant                                               VRSN:      W
                                                        220-919/Carroll ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              746,258,421        0.9588           778,325,429              48            2,600         .001676517
      2           A              742,973,249        0.9470           784,554,645              54            1,889         .006019502
      3           A              744,794,237        0.9517           782,593,503              47            1,466         .003218358
      4           A              744,290,037        0.9556           778,871,952              51              899         .005011081
      5           F1             136,885,413        0.7894           173,404,374               8              108         .022327414
      6           F1             137,248,436        0.8826           155,504,686               6               28         .020133455
      7           F1             139,524,511        0.9615           145,111,296               4                7         .004175540
      8           L1              46,513,765        1.1021            42,204,668               7              278         .007139278
      9           L1              47,106,266        0.9916            47,505,311               7               30         .027978830
     10           L1              45,923,417        1.0290            44,629,171               5                7         .014083391
  RANDOM TOTALS:               3,531,517,752                       3,732,705,035             237            7,312
  CATG D1 EXCEPTION VALUES:          179,845                             149,348
  CATG F1 EXCEPTION VALUES:      115,600,000                         123,630,628
  CATG L1 EXCEPTION VALUES:       46,177,320                          46,758,709
 TOTAL TEST VALUES (4):        3,693,474,917                       3,903,243,720
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          195,162,186
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:           3,693,474,917 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:          3,708,081,534 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:          4,098,405,906 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           3,893,343,185 (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