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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:36:08                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              019/Bowie                                                 VRSN:      W
                                                        019-909/Simms ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                3,705,674        1.0194             3,635,152               7              152         .020654871
      2           A                3,689,460        0.8653             4,263,793               6               79         .016782781
      3           A                3,725,447        0.9633             3,867,380               7               52         .019003426
      4           A                3,621,386        0.9158             3,954,342               8               26         .005932784
      5           D3              41,677,581        1.1628            35,842,433              22            2,206         .527670422
  RANDOM TOTALS:                  56,419,548                          51,563,100              50            2,515
  CATG J  EXCEPTION VALUES:        4,749,688                           4,687,693
  CATG D1 EXCEPTION VALUES:        9,944,695                           8,807,652
 TOTAL TEST VALUES (4):           71,113,931                          65,058,445
 MARGIN OF ERROR PERCENT:         17.1002458
 MARGIN OF ERROR VALUE:           11,125,154
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             53,933,291 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              71,113,931 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             76,183,599 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              65,201,566 (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