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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:05:12                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              101/Harris                                                VRSN:      P
                                                        101-909/North Forest ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A              194,573,021        0.8357           232,826,398               16            5,190
           2           A              194,634,559        0.9521           204,426,593               16            3,371
           3           A              194,068,023        0.9657           200,960,985               36            2,728
           4           A              194,368,078        1.0323           188,286,426               34            1,954
           5           F1              30,273,688        1.0722            28,235,113               13              310
           6           F1              30,619,967        0.9468            32,340,481               11               53
           7           F1              31,336,294        0.9111            34,393,913                7               14
           8           F1              28,383,730        0.9718            29,207,378                4                5
           9           L1              28,011,519        0.8950            31,297,787                8              457
          10           L1              28,761,152        0.9423            30,522,288                8               49
          11           L1              28,546,750        0.9230            30,928,223                6               15
          12           L1              26,521,569        0.9201            28,824,659                4                6
  RANDOM TOTALS:                    1,010,098,350                       1,072,250,244              163           14,152
  CATG D1 EXCEPTION VALUES:             4,469,502                           4,455,642
 TOTAL TEST VALUES (4):             1,014,567,852                       1,076,705,886
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                53,835,294
 CONFIDENCE INTERVAL VALUES (5):
   LOCAL TEST VALUE:                1,014,567,852 (OUTSIDE CONFIDENCE INTERVAL)
   STATE LOWER LIMIT:               1,022,870,592 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   STATE UPPER LIMIT:               1,130,541,180 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                1,063,274,219 (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