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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:26:29                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              166/Milam                                                 VRSN:      W
                                                        166-905/Thorndale ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                7,931,054        0.8590             9,232,892              16              233         .023174772
      2           A                7,866,354        0.8624             9,121,468              15              128         .016797870
      3           A                7,909,956        0.9425             8,392,526              15               83         .014095524
      4           A                7,862,309        1.0205             7,704,369              13               52         .009185079
      5           D3              38,475,643        1.0309            37,322,381              26            2,272         .070622922
  RANDOM TOTALS:                  70,045,316                          71,773,636              85            2,768
  CATG J  EXCEPTION VALUES:        9,198,257                           9,924,421
  CATG D1 EXCEPTION VALUES:       10,475,150                          10,699,971
 TOTAL TEST VALUES (4):           89,718,723                          92,398,028
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            4,619,901
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             87,778,127 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              89,718,723 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             97,017,929 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              86,184,802 (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