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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:11:56                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              095/Hale                                                  VRSN:      W
                                                        095-904/Petersburg ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                3,089,466        0.8983             3,439,236               7              171         .031561129
      2           A                3,084,730        0.8747             3,526,615               6               99         .007318081
      3           A                3,123,660        0.8862             3,524,780               5               59         .012742810
      4           A                3,011,262        1.0223             2,945,576               7               29         .017602106
      5           D3               7,231,494        0.9779             7,394,922              21              953         .007541405
      6           L1                 159,314        0.9862               161,543               8               10         .000564893
      7           L1                 402,097        0.9327               431,111               4                6         .002520516
  RANDOM TOTALS:                  20,102,023                          21,423,783              58            1,327
  CATG J  EXCEPTION VALUES:        2,837,754                           2,779,986
  CATG D1 EXCEPTION VALUES:       16,189,315                           8,146,294
  CATG L1 EXCEPTION VALUES:        2,661,828                           2,626,982
 TOTAL TEST VALUES (4):           41,790,920                          34,977,045
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            1,748,852
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             33,228,193 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:             36,725,897 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              41,790,920 (OUTSIDE CONFIDENCE INTERVAL)
 VALUE ASSIGNED (6):              43,701,652 (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