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DATE: 06/22/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 11:04:31                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              170/Montgomery                                            VRSN:      W
                                                        093-905/Richards ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A                1,379,727        0.9481             1,455,255               15               50
           2           A                1,373,935        0.9605             1,430,437               12               25
           3           A                1,418,556        0.9148             1,550,673               12               16
           4           A                1,272,631        1.0708             1,188,486                6                7
           5           D3               2,374,220        0.9685             2,451,440               21              321
  RANDOM TOTALS:                        7,819,069                           8,076,291               66              419
  CATG D1 EXCEPTION VALUES:             1,932,250                           1,711,216
 TOTAL TEST VALUES (4):                 9,751,319                           9,787,507
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                   489,375
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                   9,298,132 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                    9,751,319 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                  10,276,882 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                    9,434,361 (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