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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:58                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-905/New Boston ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               29,274,281        0.9860            29,689,940              18              813         .054956334
      2           A               29,269,469        0.9916            29,517,415              16              481         .016322758
      3           A               29,282,922        0.9902            29,572,735              19              334         .004044246
      4           A               29,157,112        0.9584            30,422,696              16              216         .007066368
      5           D3              39,383,473        1.0739            36,673,315              13            1,837         .015248804
      6           F1              10,308,728        0.8322            12,387,320               9               94         .043497280
      7           F1              10,221,315        0.8740            11,694,868               8               31         .037623940
      8           F1              10,684,540        0.8648            12,354,926               7               15         .025276002
      9           F1               9,174,762        1.0089             9,093,827               4                6         .001828938
     10           L1               4,838,670        0.8960             5,400,301              10              112         .461372790
     11           L1               5,056,871        1.1560             4,374,456               8               25         .045515734
     12           L1               9,376,354        0.9844             9,524,943               4               12         .021905566
  RANDOM TOTALS:                 216,028,497                         220,706,742             132            3,976
  CATG D1 EXCEPTION VALUES:        7,866,672                           6,909,762
 TOTAL TEST VALUES (4):          223,895,169                         227,616,504
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           11,380,825
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            216,235,679 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             223,895,169 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            238,997,329 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             238,173,062 (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