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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:19:47                                       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              746,069,798        0.9588           778,128,700              48            2,600         .001676517
      2           A              742,785,456        0.9570           776,160,351              52            1,889         .003352986
      3           A              744,605,984        0.9600           775,631,233              47            1,466         .002326424
      4           A              744,101,911        0.9713           766,088,655              53              899         .001834420
      5           F1             136,885,413        0.8253           165,861,399               8              108         .019679141
      6           F1             137,248,436        0.9172           149,638,504               5               28         .017560619
      7           F1             139,524,511        0.9615           145,111,296               4                7         .004175540
      8           L1              46,451,019        1.1021            42,147,735               7              278         .007139278
      9           L1              47,042,720        0.9916            47,441,226               7               30         .027978830
     10           L1              45,861,467        1.0290            44,568,967               5                7         .014083391
  RANDOM TOTALS:               3,530,576,715                       3,690,778,066             236            7,312
  CATG D1 EXCEPTION VALUES:          182,811                             151,773
  CATG F1 EXCEPTION VALUES:      115,600,000                         116,163,898
  CATG L1 EXCEPTION VALUES:       46,177,320                          46,758,709
 TOTAL TEST VALUES (4):        3,692,536,846                       3,853,852,446
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          192,692,622
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          3,661,159,824 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           3,692,536,846 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          4,046,545,068 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           3,881,201,037 (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