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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:23:53                                       2004 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
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               45,097,195        0.8928            50,512,091               21              889
           2           A               45,072,927        0.9481            47,540,267               15              583
           3           A               45,105,670        0.9789            46,077,914               17              409
           4           A               44,987,124        0.9605            46,837,193               17              241
           5           D3             138,977,980        0.9506           146,200,274               34           12,896
           6           F1              20,232,976        0.8492            23,825,926                8              178
           7           F1              20,452,119        0.8156            25,076,164                8               60
           8           F1              20,604,033        0.9944            20,720,065                7               25
           9           F1              19,546,655        1.0300            18,977,335                4                7
          10           L1               5,279,744        0.9373             5,632,929                7              175
          11           L1               5,312,375        1.0327             5,144,161               12               57
          12           L1               5,271,187        0.9328             5,650,929                7               25
          13           L1               5,065,543        1.0202             4,965,245                5               10
  RANDOM TOTALS:                      421,005,528                         447,160,493              162           15,555
  CATG D1 EXCEPTION VALUES:             9,476,940                           6,174,155
  CATG L1 EXCEPTION VALUES:             6,131,890                           6,119,302
 TOTAL TEST VALUES (4):               436,614,358                         459,453,950
 MARGIN OF ERROR PERCENT:               5.0000001
 MARGIN OF ERROR VALUE:                22,972,698
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 436,481,252 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  436,614,358 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 482,426,648 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  414,627,890 (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