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DATE: 01/23/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:05:16                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              061/Denton                                                VRSN:      W
                                                        061-907/Aubrey ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A               48,314,868        1.0391            46,496,841              16              488         .003144085
      2           A               48,345,150        1.0235            47,235,125              24              342         .002137312
      3           A               48,161,823        1.0257            46,955,078              42              265         .003165102
      4           A               48,229,799        1.0123            47,643,780              21              160         .001618853
      5           D3             110,483,217        1.0252           107,767,477              20            1,746         .015381456
  RANDOM TOTALS:                 303,534,857                         296,098,301             123            3,001
  CATG D1 EXCEPTION VALUES:        2,357,024                           2,057,495
 TOTAL TEST VALUES (4):          305,891,881                         298,155,796
 MARGIN OF ERROR PERCENT:          5.0000001
 MARGIN OF ERROR VALUE:           14,907,790
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:            283,248,006 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:             305,891,881 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:            313,063,586 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):             344,846,768 (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