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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:02:54                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              234/Van Zandt                                             VRSN:      W
                                                        234-902/Canton ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               49,632,280        0.8355            59,404,285              17              815         .046347364
      2           A               49,642,516        0.9158            54,206,722              12              539         .038403048
      3           A               49,758,344        0.9091            54,733,631              20              380         .019019544
      4           A               49,312,360        0.9526            51,766,072              11              224         .010666329
      5           D3             156,155,990        0.9997           156,202,851              58            5,697         .063594428
      6           F1              24,761,464        0.8155            30,363,536              10              164         .044770163
      7           F1              24,814,985        0.9259            26,800,934               7               61         .004617867
      8           F1              25,389,527        0.9757            26,021,858               8               26         .043888423
      9           F1              23,986,385        1.0104            23,739,494               5                7         .016457611
     10           L1               5,846,593        1.0403             5,620,103               7              184         .002227760
     11           L1               5,911,596        1.0551             5,602,877               6               59         .003472155
     12           L1               5,823,169        0.9834             5,921,465               6               24         .001557288
     13           L1               5,644,391        1.0460             5,396,167               5               10         .007523246
  RANDOM TOTALS:                 476,679,600                         505,779,995             172            8,190
  CATG D1 EXCEPTION VALUES:        9,492,640                           6,141,823
 TOTAL TEST VALUES (4):          486,172,240                         511,921,818
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           25,596,091
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:             486,172,240 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:            486,325,727 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            537,517,909 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             470,171,786 (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