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DATE: 01/27/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:59:25                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              065/Donley                                                VRSN:      W
                                                        065-902/Hedley ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A                  785,223        0.9176               855,736               6               77         .028285554
      2           A                  786,732        0.9881               796,207               6               45         .020256580
      3           A                  824,512        0.9501               867,816               5               21         .001813534
      4           A                  726,563        1.0079               720,868               5               10         .000757660
      5           D3               6,378,949        0.9279             6,874,608              20              819         .017686886
  RANDOM TOTALS:                   9,501,979                          10,115,235              42              972
  CATG J  EXCEPTION VALUES:        4,468,937                           4,589,778
  CATG D1 EXCEPTION VALUES:        7,857,571                           7,716,568
 TOTAL TEST VALUES (4):           21,828,487                          22,421,581
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:            1,121,079
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:             21,300,502 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:              21,828,487 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:             23,542,660 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):              25,057,337 (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