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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:36:03                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-907/Texarkana ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A              146,071,239        0.9139           159,832,847              76            3,590         .059784730
      2           A              146,081,481        0.9385           155,654,215              89            1,884         .015587400
      3           A              146,007,273        0.9244           157,948,153              65            1,305         .007913007
      4           A              145,991,570        1.0070           144,976,733              22              672         .019900025
      5           F1             102,095,062        0.9485           107,638,442               7              537         .020025807
      6           F1             102,555,686        0.9872           103,885,419               7              146         .034675493
      7           F1             104,063,273        1.0025           103,803,764               8               51         .008829254
      8           F1              99,538,189        0.9453           105,297,989               4               11         .001742307
      9           L1              51,206,952        1.1359            45,080,511               9              551         .089547203
     10           L1              51,635,200        1.0184            50,702,278               8              129         .030427969
     11           L1              52,224,862        1.0536            49,568,016               6               41         .010936685
     12           L1              49,519,049        0.9312            53,177,673               4               11         .001125667
  RANDOM TOTALS:               1,196,989,836                       1,237,566,040             305            8,928
  CATG D1 EXCEPTION VALUES:          880,570                             720,263
 TOTAL TEST VALUES (4):        1,197,870,406                       1,238,286,303
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:           61,914,315
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          1,176,371,988 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           1,197,870,406 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          1,300,200,618 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           1,452,471,905 (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