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DATE: 02/10/2005                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 12:07:22                                       2004 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              109/Hill                                                  VRSN:      P
                                                        109-911/Whitney ISD
____________________________________________________________________________________________________________________________________
         (1)           (1)                (1)              (1)                (1)              (2)            (3)
      # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE      SAMPLE SIZE    TOTAL PARCELS
      _________     ________          ___________     _____________       ___________      ___________    _____________

           1           A               60,988,219        0.8987            67,862,712               30            1,560
           2           A               60,975,186        0.9025            67,562,533               36              728
           3           A               61,104,607        0.9782            62,466,374               24              382
           4           A               60,893,370        1.0398            58,562,579               15              203
           5           C               19,261,066        0.8836            21,798,400               24            2,792
           6           C               17,336,633        0.6909            25,092,825               15            1,564
           7           C               18,371,190        0.9997            18,376,703               15            1,138
           8           C               17,048,441        1.3811            12,344,103               16              471
           9           D3              36,993,740        0.9602            38,527,119               21            1,922
          10           F1              20,759,160        0.9604            21,615,119               10              181
          11           F1              20,645,087        0.9999            20,647,152               12               25
  RANDOM TOTALS:                      394,376,699                         414,855,619              218           10,966
  CATG D1 EXCEPTION VALUES:             4,353,520                           3,610,989
 TOTAL TEST VALUES (4):               398,730,219                         418,466,608
 MARGIN OF ERROR PERCENT:               5.0000000
 MARGIN OF ERROR VALUE:                20,923,330
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:                 397,543,278 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:                  398,730,219 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:                 439,389,938 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):                  391,481,968 (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