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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:57:35                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              043/Collin                                                VRSN:      W
                                                        043-914/Wylie ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              322,395,833        1.0032           321,367,457               55            2,341
           2           A              322,497,608        1.0067           320,351,255               57            1,883
           3           A              322,454,342        1.0022           321,746,500               53            1,618
           4           A              322,450,508        0.9992           322,708,675               54            1,232
           5           F1              39,097,956        0.9994            39,121,429               10              138
           6           F1              39,207,694        0.8438            46,465,625                7               55
           7           F1              39,954,282        0.8025            49,787,267                6               23
           8           F1              37,986,141        0.8966            42,366,876                3                4
           9           L1              13,161,298        0.8525            15,438,473                7              109
          10           L1              13,068,703        0.9629            13,572,233                8               22
          11           L1              17,859,722        0.8505            20,999,085                3                6
  RANDOM TOTALS:                    1,490,134,087                       1,513,924,875              263            7,431
  CATG D1 EXCEPTION VALUES:               979,798                             860,361
  CATG L1 EXCEPTION VALUES:            41,931,325                          47,629,101
 TOTAL TEST VALUES (4):             1,533,045,210                       1,562,414,337
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                78,120,717
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:               1,484,293,620 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                1,533,045,210 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:               1,640,535,054 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,826,654,665 (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