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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:47:49                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              074/Fannin                                                VRSN:      W
                                                        074-912/Trenton ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                8,837,376        0.7877            11,219,215              15              211         .021373852
      2           A                8,798,850        0.9115             9,653,154              17              112         .068910844
      3           A                8,866,050        0.9984             8,880,258              15               70         .028340853
      4           A                8,668,185        1.0728             8,079,964              20               47         .012536712
      5           D3              41,845,272        0.8633            48,471,299              26            1,596         .108930600
      6           L1               1,278,487        1.0008             1,277,465              15               40         .024019401
      7           L1               1,413,546        1.0803             1,308,475               8               10         .016892076
  RANDOM TOTALS:                  79,707,766                          88,889,830             116            2,086
  CATG J  EXCEPTION VALUES:        3,355,360                           3,246,134
  CATG D1 EXCEPTION VALUES:        2,192,589                           3,256,129
  CATG L1 EXCEPTION VALUES:        2,552,550                           2,383,737
 TOTAL TEST VALUES (4):           87,808,265                          97,775,830
 MARGIN OF ERROR PERCENT:          6.5029220
 MARGIN OF ERROR VALUE:            6,358,286
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:              87,808,265 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:             91,417,544 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:            104,134,116 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              85,024,693 (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