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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:35:55                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-903/Maud ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                6,713,723        1.0161             6,607,345              10              228         .048183098
      2           A                6,719,763        0.9167             7,330,384              11              130         .030733826
      3           A                6,732,064        0.9566             7,037,491              12               86         .012711674
      4           A                6,597,877        0.9868             6,686,134               9               52         .021140024
      5           D3              13,939,230        1.0280            13,559,562              18              577         .060968675
  RANDOM TOTALS:                  40,702,657                          41,220,916              60            1,073
  CATG J  EXCEPTION VALUES:        1,865,890                           1,831,861
  CATG D1 EXCEPTION VALUES:        1,730,455                           1,532,404
 TOTAL TEST VALUES (4):           44,299,002                          44,585,181
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            2,229,259
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             42,355,922 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              44,299,002 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             46,814,440 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              41,763,421 (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